It sucks. Very early on I thought wow, THIS is the worst Sonic game I've played thus far. The level design is atrocious, graphics are cool but dip into the eye-searing territory too often, cast is interesting but can all pretty much do the same thing and the tether mechanic is annoying and ever so slightly broken.

But it grows on you. Maybe not in a "aw,this is so endearing" way, more like in a "i'm suffering from a terrible bacterial infection" way. If anything, admire Sega for making yet another strange and unconventional Sonic game for a doomed-from-the-start Mega Drive add-on but then only rerelease boring ass CD while Knuckles' Chaotix is relegated to emulation and having it's soundtrack overused in gaming Youtube videos.