Somewhat inconsistent grind size, relatively unstable, no lid to retain beans in hopper.
This is an absolutely wonderful budget/travel grinder. It has a good quality grind at many settings, from espresso, to drip (in my experience). However, as the adjustments get coarser, the grind size gets less consistent. This is due largely, I think, to the drive shaft only having one point of stability, thus allowing it to pivot and alter the burr position. I personally haven't devised a way to solve this problem, but it should be noted that it looks like it could be solved easily enough. That being said, it is "self-centering", meaning that as long as there are beans in the grinder, the burrs should be close to center. This holds true fairly well at the finer settings. As far as use goes, it is easy enough to figure out. The cog at the top of the grinder adjusts your grind, the fork locks in the setting, the handle and nut keep everything in place and allow you to grind. I've found that zeroing the burr is absolutely necessary for repeating grind settings; meaning every time I grind, I zero in, then set the appropriate grind size. It doesn't take long, but may be a little hard on the fingers. The grinder is exceptionally simple to dismantle, making cleanup fairly easy. I usually rinse and scrub with a cloth after use, and I have experienced no problematic buildup. The glass in the grinds holder is especially nice, so there is no annoying static. I have made a few modifications to the grinder to make my life a bit easier. I added two M7 nuts to the top of the shaft, eliminating the handle and retaining nut. This allows me to simply use a cordless drill to grind. It's noisy, but it sure makes grinding first thing in the morning easier =D. I also added a plastic lid (I don't recall where it came from), with a hole bored out of the middle, that I use to make sure I don't get any "jumpers" while grinding.
The eBay seller I purchased from was actually out of stock when I bought it, but didn't say so on their site. So, I waited about a month to get the thing drop-shipped to my place. Still, the box and grinder were in solid shape, so I didn't complain (much).