The acting's pretty good but subpar in some scenes, although the kids do a really good job for their first lead/supporting roles! It portrays high school nowadays pretty well. The soundtrack has some good tunes and the casting is diverse without it being forced.
But these things can't fix the main issues of this movie. The pacing is fast and quite off-putting; songs after songs can be tiring, relationships fluctuate every scene, you name it. The dialogue can be a bit forced and dramatic at times. There are also a bunch of weird cinematography & editing choices within this movie that I can't bother getting into.
Evan's Jewish identity also gets quite undermined in this movie, which was a huge part of the story both in the musical and in the book. Most parts of the movie also say a lot of things about Jewish culture (bar mitzvahs being parties and nothing more) which aren't necessarily true.
All in all, a decent movie that had a lot of potential but failed to meet it.