Considering the terrible track record SEGA have with Sonic I would definitely not praise them for this game until actually playing it.
Sonic Lost World sounded like a decent game, on paper, but it played dreadful IMO. It was a Sonic game trying to be Mario, not what a Sonic fan wants at all. As a whole I don't like Mario - Mario 64, Galaxy and the new 3D World are the only ones I actually enjoyed.
Give me Sonic Adventure 3 already, SA1 & 2 had their flaws but they were much more fun games than anything they have done since - except perhaps Generations which wasn't too bad.