I bought the bare bones Maltmill with the gears and one-sided adjustment, and I wasn't exactly impressed with the build quality. First, the fiber board sides were about a step above flimsy. The Gears meshed well and the spacing between the shafts was proper. However, the shafts were cut a little small, or the gears were bored just a bit over, and shims were required to give a good fit. A friend of mine cut some aluminum sides to replace the fiber board, and built an aluminum hopper that will hold more than enough grain for a 10 gallon batch. So, despite all of the issues, the rollers are still good and it's a good design, and with the modifications it will serve me well for years. It rips through some grain with a 3/4 hp motor. Here is a picture of my set up:
