I have two big problems with this movie so far...
1. The way Sonic looks. Just... why does he look like a little blue monkey with spines? At least Boom Sonic actually looked like the Sonic we know and love.
2. It seems really generic, and it should've come out in the mid-to-late-2000's during the big "cartoon character in the real world" trend. They even use the old "human finds talking animal in their house and they scream at each other for a prolonged period of time" trope that's been done to death.
I do like the casting choice of Jim Carrey as Dr. Eggman, though. He seems to be having a lot of fun with the role, and I'm sure he'll really ham it up.
But otherwise, yyeahh, this does not look good. But will it be as bad as The Smurfs movie or the Woody Woodpecker movie? We'll see...