Ok, I received mine and am going to give my thoughts. The first thing I noticed was that the rollers machining was done in such a way that the tips of each point on the roller was chipped out. It's probably ok, but still. I wish the concentric bearing locking screws were thumb screws, not Allen screws. That's an easy fix though for me. Big hit, the crank shaft is way out of concentric it's and shook my arm off with my drill powering this mill around 300 rpm. That is possibly worth sending it back for me and buying a Schmidling to replace it for 30 bucks more. My local hbs has three of those running full time and they love them. Now, performance was good. It mills fast. I had to adjust the roller gap though because it wasn't tight enough. No problem, loosen the lock screws and, uh oh... The concentric on one side must have a bur because it took pliers to rotate the concentric bushing to adjust the gap. It might break in. Here's a video.
All in all if you accept it as a DIY mill it's not too bad, but the roller machining quality and crank shaft issue are a real downside. If you can live with that this mill is great.