For me its a good sequel and better then the first film
Now with that being said 30 mins of this film could have been cut and think it will be the one major thing people will talk about, its just too long. Its a Sonic movie and its for kids very....very clearly, so lets try not to go over 90 mins next time.
I'd cut the wedding stuff and the dance off and maybe some of the sonic alone stuff but other then that the film works well.
Besides Jim Carey still dont care about the human characters, hope we see even less of them next time.
Sonic feels more like himself then in the first film and thats great, Tails is super sweet and pretty much perfect and Knuckles, I'm sad he may never been this badass in a movie again, lol
Now onto BIG Spoilers
Shadow as the next villain to me, is both smart but also really skipping over lots of other sonic villains like Metal Sonic and Choas and hope they can still come in even if they just aren't as loved as Shadow. Also while no hints about her, I think Amy will also show up next film