Nintendo Power gave every Sonic game released in the past... 5 years an 8 out of 10, even stuff like Shadow and the Wii spinoff games. It is no sign of quality.
Iizuka not developing this and people outside of Sonic Team working on the game is a sign of quality. I need to admit though that the Mario inspiration in this game just pisses me right the fuck off. Seriously, so many of the sounds are incredibly similar, let alone art concepts and stuff too. I do not hate Mario, but it is really annoying how every single Sonic game being released now barely even feels like a Sonic game anymore.