Rented it yesterday, enjoying it so far. I dare say this is my favorite Sonic game (I'm not a huge Sonic fan). After most recently playing the original Sonic and Sonic Rush, I never really had the desire to keep playing, but this one has a lot of the "one more time" factor if you run into a tough mission. Overall I haven't had too many of those, but I'm only through the second world (just unlocked the Dinosaur level).
The only control-related issue I've had is depth-perception, I guess you could call it. Specifically, if a turn is coming up, and there are obstacles to avoid on it, it can be difficult to make sure I'm lined up properly until its too late. But as of yet I haven't run into any cheap deaths from bad camera control, though that might come later.
Jumping and charging took a few missions to get used to, but now they're pretty easy. Once in a while I won't jump high enough or soon enough to lock on and I'll fall to my death, but that's usually my fault.
All in all, well worth a rental, and I will likely add this to my list of games to get in the $20-$30 range.