This little picture from the trailer itself pretty guarantees the reaction of all of us who love Sonic.

Sonic The Hedgehog (2019)
It's hedious, it's horrible, it's... A children's comedy. A low budget movie featuring a still successful character who has been very present on not just Sonic Mania but in a lot mobile games. And you know what, it fits with the current young audience of our old Sega mascot.
What about us, hardcore oldschool fans of the blue hedgehog? Shouldn't our opinion matter? Come on, let's get serious. We don't even want a live action Sonic movie. It doesn't fit the franchise. It's like a movie version of Sonic 2006, for crying out loud. Nothing good can come out of that.
It's clearly not meant to be a blockbuster either like an Avengers movie. It's something parents will take their kids to see on the weekend. It's that kind of movie. And that's okay.