Oooook, so now I just finished act 2-3 and here's my two cents so far.
At first the controls felt weird, but I got the hang of them pretty quickly. Once you nail them, damn it's getting fun. I'd even say that It's pretty much the best control scheme in a 3D Sonic game so far. It's precise as hell, you have full control.
Game is tons of fun, it's a different and refreshing approach at Sonic. It's not as fast as Sonic Unleashed/Colors/Generations but it feels totally ok to me, because the game is made on entirely different mechanics where you trade speed for more control. In fact, controlling Sonic feels great, miles ahead Colors in every aspects. It's visually stunning, best looking Sonic game so far imo, so many colors and dat locked 60fps, hmmmmmm, delicious experience so far.
Funny thing I spotted too is that they took another shot at Mach Speed stages, but this time it's actually fun and more importantly: You won't die because the controls and overall game aren't utter shit like Sonic 06'. I saw a couple of opinion saying that the level design was bad because they needed to memorize the level to be able to finish it, to be honest, I think that's BS, you just need to be alert and be looking at what's coming, sure you may die a few times because you didn't saw the shit coming but it's totally normal for a level to be challenging a bit. When I died at certain places I felt like
I fucked up, not that the level design was bad.
I noticed some weird design choices though, like the famous 'no life at 100 rings', but the problem is easily compensated by putting lots of lives here and there, so that's no biggie. Another thing I noticed was that there are no ratings in the end of a stage, not that it's THAT important but it's always satisfying to collect all the S rankings like in Colors. Boss battles are...nothing impressive, but it's always like this,
always.
While it only seems to last for something like 5-6 hours story wise, I know I'll be spending many more hours trying to 100% everything, and them red coins seems to be well hidden enough, so I'm going to have a blast doing it post-campaign.
Now that I played it, all I can say is that it's definitely worth it, it's a breath of fresh air that is more than welcomed to me which doesn't seems to be the case around some reviewers, but if you ask me? Buy it.
That's it for now, I'd like to play more but I'm working tomorrow and I need some sleep.
EDIT: Wow! There's people dissing the OST? SMH, it's wonderful!!!!