Apparently it was bad enough that even some of the most undiscriminating Sonic fanatics disavowed it; the sort of people who would pretty much buy anything with the likeness of Sonic on it and mindlessly rave about how good it was didn't care for this version.
To add insult to injury the movie has a catgirl for no apparent reason except to serve as fap material for older viewers and also as some sort of Eggman's ill-fated one-sided love interest. When I first saw this, she got so annoying that it made me want to pull my hair out.