I use one for all my milling. The trick is to take it apart and adjust the distance between the plates. The new "minimum" setting is just right for most grain. Your can tweak it for the grain you use. I have not any problems with stuck lautering and my efficiency is better than when I had my local brew supply store do the grinding for me on a roller grain mill.
Cost is an issue, but we already had the mixer, so not a serious hit. Around $50, if I remember. I marked the original "stock" setting so if we want to make flour we can set it back to do that.
The adjusting knob is on a spline, so just slide it off, set the gap, and slide it back together so the new zero is the gap you want. I can't remember the number but I think it was .03" to .04". About the same as you would set a roller mill.
Works like a champ!