Another fan of the mm2-2.0 here. Built my own hopper/bucket stand, and use a harbor freight slow speed drill. Been only a few brews but great so far.
What is your gap set at? Mind came with around .044 and I was getting 72% EFF with it. I tightened it up for next brew day a bit. I want around 80-85%. Going to run a test crush here soon and see how it looks.
*Everything I say is fully substantiated by my own opinion