This is not the best teen movie or even teen musical, but it is still worth a look (or listen, rather) due to its catchy and original music. It is a reminder of what the High School Musical franchise has done for teen musicals. However, while HSM's choreography was more naturalistic, this one's over-produced.
The draw for teen girls will almost certainly be the Jonas Brothers, who are surprisingly okay film actors. While they do not carry the film alone on their shoulders, they do inject the extra element of fun that will be missing if they weren't in it.
The acting was for the most part what is expected from a Disney teen pop movie - bubbly but without much needed from the actors. The draw is and always will be the music and the dancing. Unless you're a teen, you won't care much for the characters as they go through the usual teen 'crises'. The music is upbeat, the songs are original and catchy, and the dance choreography acceptable (although the guys seem to have all the good moves; the girls do little other than shake their heads, chests and hips), which is what are more important here anyway. I have a preteen god-daughter, and even she is more excited by the music and dancing than in the story.
It may not rank as high as High School Musical, but unless you're willing to watch that again, this is still a good enough movie for the kids to watch. Even if they don't appreciate the story, it may still bring out whatever musical instincts are in them.