My Minimig v1.1 plays just about every OCS/ECS game I've thrown at it (however there are exceptions). Make sure you buy the 4MB version so that you can use WHDLoad. Also consider waiting for either the Chameleon64 or FPGA Arcade.
Really, just wanted for the Amiga side of things. I still have my 64 stuff so really no need to emulate that at this time, even know the MMC-216. I mainly got it because it was suppose to emulate the Amiga and the Atari 2600. 2600 emulation is fine. But the Amiga one is still in beta.
In regards to the ADF support for the MiniMig. I saw someone write that it does not play all. Is there a certain brand of game that does not play. I tend to throw a lot at it. Like on the 64, the uIEC has major issues with Software Loaders. Really bad issues with EA Game titles, which of course, is what I usually play. I just wanted to make sure if I got it, there is a compatibility factor. Which ADFs doesn't it play?