So I finally ascended to real (probably closest to real actually but still) SEGA Genesis controller when I got it yesterday from Walmart.com. (I had to order it anonymously, ordering would not work on an account I created.)
(Don't worry, I'm not ditching my M30 at all.)
Initial impressions: It's a controller, it no doubt is called a good controller for a reason. I actually like the packaging a bit more if anything.
(Would likely fit right beside my copy of Sonic Mania Plus very well)