I'm not excited for this Sega Genesis mini, my only hope is that someone can build some good controllers for them.
Sega was not capable to do their Sega Genesis Classics for PC/Xbox/PS4 and sent development to d3t, which have done a poor job and took months to fix several issues. The intro video is still lagging in PCs with onboard video and in Xbox One.
Their Android "Classic Emulator" is half-assed and it also took months to be roughly playable.
I don't think Atgames is doing a great job but I can't really imagine Sega doing something much better.