There are a couple of standouts on this album, particularly Make It Right & Fall. Make It Right is the better song, but Joe's performance is lacking - they should've let Nick do it. Fall is dramatic & well-executed. The other songs are all ones that have made it onto my playlist at one point or another depending on my mood: L.A. Baby & Feeling Alive for more upbeat moments, and Critical or Invisible for more melancholy ones. Most of the songs are upbeat. All of them are palatable. None of them are great.
I love the Jonas Brothers, but this soundtrack was like the show - something to keep their name going. It didn't really feel like them. Make It Right was pretty much the only one that felt like a JB song, and the production & performance ruined that. It was great to hear Nick rap, but again, not really their thing (Bounce aside). Even the Camp Rock (1 & 2) soundtracks are more JoBro than this.
The hard part is that not a single song is horrible. They are all enjoyable in some way, but none of them blow you away. LVATT had some truly amazing songs (like Paranoid, Before the Storm, & Black Keys) that really showed promise. There was nothing like that on this album.
That said, a die-hard fan should probably purchase it for completion reasons, but if you only kinda like the Brothers, I probably wouldn't buy it.