Nice heavy duty unit. If you’re a person that doesn’t pay attention this may not be for you. If you follow directions (hard for men) you’ll be ok. You can really dial it in. Gather lots of scrap your going to need it. Once’s dialed in though you can make boxes all day, great repeatability.Once again, Incra hits it out of the park with this wonderful jig.I am finishing up a portable cabinet in which I keep model paints, small hand tools, spare model bits and the current project on which I am working (I have inquisitive cats, so I needed something which would keep them from carrying off model parts). The cabinet has several drawers; one external and two internal. I keep my acrylic paints in the external drawer, but wanted to be able to stack them and group them, possibly through using little trays. The more I thought about it, I also decided I wanted to make little wooden trays for the hand tools, paint brushes, and spare model bits. I had been looking at the Incra iBox Box Joint Jig for some time, but had no justification for the purchase...until now.Having already purchased Incra's Miter 1000HD and absolutely love it, so my expectations for Incra's iBox Box Joint Jig were quite high.Amazon delivered the package within two days (yay, Amazon Prime!). The shipping box was in good condition and the Incra iBox Box Joint Jig was well cushioned inside with a bunch of crumply brown packing paper. The colorful retail box was undamaged (and surprisingly heavy). Giving my wife a quick peck on the cheek and a hearty "I'll be in the garage for a few hours!", I raced to the garage with my new toy under my arm.As with Incra's Miter 100HD, the iBox Box Joint jig is well-packaged. I inspected each part as I removed it from the retail box; the GlideLOCK(tm) Miter Bar is zip-tied to a piece of cardboard, so you will need a pair of nippers to free it. All parts were present and accounted for, and all were in pristine condition. Two bags of screws, T-track nuts and bolts were clearly labeled with their contents. The retail box also included full color assembly and usage instructions, as well as a DVD.Assembly was fairly straightforward as I had already downloaded and read the instructions prior to the arrival of the Incra iBox Box Joint Jig. The photographs provided much needed clarity to the written instructions and proved invaluable in a couple of steps. Not addressed anywhere in the instructions was what to do with the three strips of UHMW tape included in one of the parts bags. My presumption is that they are meant to be applied to the bottom of the stock ledges, so that's where I applied mine, as well as one place where the jig slightly scraped the table saw top.I had the INCRA iBox Box Joint jig assembled in about 20 minutes, and I had already prepared a couple of scrap pieces of wood for a test cut.Since the scrap wood I had prepared was narrow, I wanted to try some small cuts, so I installed just the two outside blades of my Freud SD208 8-Inch Professional Dado blade.The usage instructions were accurate, and again, the photographs which accompanied the steps were very useful, although as a professional technical writer of 30+ years I would have formatted the steps in a different manner as I did have to read a couple steps two or three times for them to make sense (but that may just be me and how I process information). I adjusted the Incra iBox Box Joint jig, according to the instructions, to make 1/4-inch cuts. Within 5 minutes I had a pair of nicely mated pieces of wood. The joint was beautiful, snug and crisp with zero tearout. The snugness of the joint was not overly tight, nor was it too loose. All it took was a couple of well-placed taps with my rubber mallet and the two pieces were firmly mated. Also, the instructions show a wooden handscrew clamp being used to secure the project piece during cutting operations, but I used an Irwin 12" Quick Grip clamp, which I believe greatly sped up the process by allowing me to use one hand to rapidly clamp or release the project piece from the jig while using the other hand to move the project piece after each cut.The Incra iBox Box Joint Jig works perfectly in my Bosch 4100-09 table saw.The GlideLOCK(tm) Miter Bar does wobble when the whole assembly is slid back away from the dado blade. This is due to the rear GlideLOCK(tm) mechanism exiting the miter slot and losing contact. It does re-enter the miter slot prior to the project stock making contact with the dado blade, so the only real issue I foresee is additional wear on the rear GlideLOCK(tm) mechanism as it makes initial contact with the edge of the table saw's miter slot. Fortunately I have a couple spare GlideLOCK(tm) mechanisms, so I don't expect this to be a critical issue for several years.I have yet to view the DVD and I will update this review once I have.All-in-all, I am very pleased with the Incra iBox Box Joint jig. It's ease of setup and ease of use means that I will be able to create beautiful boxes and trays in little time.Thanks, Incra!It's a great tool, once you get it. Plan on cutting many test cuts to get it dialed in.I've been woodworking, both professionally and as a hobbyist, since 1974. Over those years, my appreciation of the value of jigs has continued to increase. For example, using a circle cutting jig on my band saw allowed me to cut precision circles ranging from a couple inches to three feet in diameter.Box joints, or finger joints, make for strong joints and can add aesthetic value to a project. Laying out multiple box joints, individually cutting them and getting good, tight joints that fit is a daunting task for even seasoned woodworkers. Often, we end up with a sloppy fit of some or all of the joints, or joints that will not come together at all.Obviously, precision is critical for box joint projects. To that end, many of us build jigs, to allow us to make cuts that are both the exact same width and the exact same distance apart. Usually, such jigs are limited to a specific width of cut, requiring the exact, same set up each time its used. Too, if the jig is off mere thousandths of an inch to the blade, each successive cut will compound with the previous to produce pieces that will not join. In the end, you've wasted time and material.It has become my habit to consider reviews of things I am considering buying. The more reviews, the easier it is to form a sound opinion of a product.For the most part, everyone held the I-BOX in high esteem. The majority gave it five stars. Some gave it four, but many of those really had little or nothing negative to post. The three star and under ratings were few and sounded like they were inspired by good faith mistakes, shipping damages, preferences, or cockpit errors. I was hard pressed to attach importance to one star reviews. For example, that the miter slot bar did not fit a Shop Smith slot says more about the Shop Smith than the I-BOX, which defaults to the industry standard 3/8" deep by 3/4" wide miter slot.My appreciation and knowledge of jigs, bolstered by the general consensus of the reviews, prompted me to buy it and, once again, I am not displeased by my reliance on the experiences and opinions of others.Anxious to get working with this new tool, I started off making simple dentils. I was quickly impressed at the easy set up and how quickly I was able to work a four foot long board.A "heads up" to those wishing to work material thicker than 3/4": I tried a box joint on one inch thick material. The IBOX accepted it fine, but I quickly learned the limitation of using a six inch dado blade. It would not raise enough to deal with material that thick. It did, however, work fine with 3/4" stock. This, of course, is not a limitation of the IBOX, but, rather, one on the dado blade, when tackling thicker stock.Below are a few possible improvements to the INCRA IBOX. They would not affect function, but would improve ease of use: 1) Make the back guard lock downs taller, so we don't have to pretend to have dainty fingers. For example, many toilets come with long handled, disposable nut drivers for tightening the tank to the bowl. Something similar for the back side guard that extend slightly above the backing fence would make loosening and tightening them a breeze. 2) The front hold downs need to be replaced with larger ones. Since the locking bolts are a standard size, I used a couple knobs from my jig parts collection. It made loosening and tightening the front guard bolts much easier. I'd gladly have paid a buck more for this convenience. 3) I wrote a condensed version of the set-up sequence, sized it to fit flat, unused areas of the jig. I laminated it and glued it to the jig to help refresh my memory when I haven't used the jig for a while.Though I believe this unit can be improved (e.g, the inventor posted a nice Plexi cover he made for demonstrating the I-BOX, which made checking material position easier), I still think it at the top of its game, right down to that the guards do a great job of containing chips and dust created during use. None the suggested improvement should, even remotely, be considered deal breakers.To summarize, this jig makes woodworking fun by making it a bit easier to produce reliable, accurate joints.