Not as good as the Sonic Adventure games but better then Sonic Heroes and Shadow the Headgehog.
Shadow's gameplay is my favirote, he is slightly slower then sonic but he sees much more action and scince of his improved homing attack and Chaos Boost and viacles, he makes he's story really fun.
Now we have the newcomer Silver. His gameplay is very unique. You use his Telekenisis to pick up objects and trow them at enimies, throw enimies attacks back at them, solve puzzles and levitate over huge gaps. Sadly he is not very good at fighting as the other two.
Overall this game is good. It is not as good as the Sonic Adventure series because the annoying side missions, slower headgehogs, glitchs, and camera angles. But it's still better then some other 3D Sonic games. This game would have been alot better but Sega rushed Sonic Team into making this game so early. Anyway this game does not get the apreciation it deserves.