My first problem lies with the revenge itself. The first one exacting revenge didn't even really have a reason. She wanted to “protect her sister,” but I'm not entirely sure from what considering she was relying solely on second-hand information. Plus, the terrible thing that happened to her doesn't really have anything to do with what's going on with her sister.
The other girls' reasons had to do with bullying which is a little more understandable, but I still didn't really have much sympathy for them. Bullying is a terrible thing and difficult to go through, but I just couldn't get on board with the revenge. Normally I love a good revenge story, but you have to really mak me feel the rage and sympathy for it to work and Burn for Burn just didn't.
All that being said, I'll likely read the sequel. Both to see if it's better and simply because it was a really quick read. I'm hoping to see a little more substance and growth in round two (is it still going to be the same characters?) And I really need to know what is up with the paranormal stuff.
Speaking of which, I've seen a lot of people saying that the paranormal stuff was jarring and just tacked on at the end, but it really wasn't. It was there from the start and they weren't trying to hide it from the reader either. I'm a little confused as to how it kind of snuck up on so many people.
The Nutshell: If you're looking for something deep or emotional then Burn for Burn most likely isn't it. However, if you're just looking for a quick read and don't want to get too invested (like a palette cleanser or something) then it's worth picking up.