I'm not running the wanderer, but am running the Feigao 7XL, which is essentially the same motor. I'm also using the MM controller with 4S lipo. I have had no issues with the setup and it is very smooth. I had, at one time in the no so distant past, wanted either a Lehner or Neu motor very badly. After actually done my conversion and using this MM/7XL setup, I've just stuck with it. It's hard to beat for around 200 bucks.

I'm running this in a buggy with 14/46 gearing. My 6Ah packs barely get warm and cogging, if any, is negligible.