If you're a fan of Amanda Bynes you might enjoy this just because she's in it playing her usual role, but otherwise, this movie is pretty awful.
The main character Jenny is supposed to be a smart, soon-to-be pre-med student who is looking for love while working a summer job on a tropical resort. Notice I say "supposed to be" as although they talk about her being brilliant throughout the movie, she is actually made out to be quite an idiot. She is obsessed with a famous rock star and is constantly drooling over him, and seriously considers being with him in a long term relationship even though she has never met him. Sure Amanda Bynes is cute and can be funny, but she comes across as a bit pathetic in this one.
The movie is also filled with cliché characters, which makes it a bore, and it's very predictable from the moment it starts. There are no surprises here. You have the cute best friend with a crush on Jenny, the typical mean girl enemy (who happens to be everywhere she is), the rock star's stuck up agent with a British accent and weird hair, the black friend who's a player, an unsympathetic boss, the whole works.
Now other than the characters seeming more desperate than funny, there isn't anything else horribly wrong with the movie, but it definitely falls flat and isn't all that enjoyable. But there is nothing offensive about it, it is cutesy and clean, so if you're really bored and are into teen girl rom-coms or you like Bynes, it may be worth a one time watch. If you like more substance to a movie as far as plot, characters, or humor, you will probably want to skip this one.