I have both the Custom Crafter units (X2 Mill and lathe) and one cheaper motor and controller I got from A-zon.
The CC units are much nicer and easier to setup, but you pay a little more.
The cheap sewing machine motor I bought for my bandsaw project works, but its been far more difficult to figure out how to mount the control. Basically Im afraid of destroying the controller to find a better mounting option, and its a lil bulky as is.