This is a cool chao raising game that comes with a free eggman game attached, sometimes you even get to play as Tails

Hating Sonic Adventure 2 makes you RACIST

When you play the hero story first it starts off very strong with City Escape and It has one of the best stories in the series.

If you like going fast and doing some platforming then I think you will like Sonic & Shadow.
If you enjoy 3rd person shooters while holding buttons then Tails & Eggman stages deliver.
If treasure hunting is more of your jam then Knuckles and Rouge stages is for you but it has a weak radar.

In conclusion it can be a fun game but if you are picky when it comes to game genres then it will be very inconsistent.