IGN sure made short work of reviewing this movie, which is still about to be shown here in the US in some states. Seems that the major thing they point out is Jim Carrey acting more of a cartoon character than the titluar CGI hedgehog, which I would agree by just seeing clips from trailers and such. Another thing they kept repeating over and over is that "IF YOU ARE A SONIC FAN" you would actually like it for what's shown there. In the end they just state the movie isn't half bad, giving it a 7 out of 10.
Sites like IMBd gives it a 7.1/10 while Rotten Tomatoes has it at 63% thus far.
Link of IGN review below:
Sonic IGN Review
honestgamer Staff Feb 13, 2020
EmP Staff Feb 15, 2020