This movie wasn't awful, but it was super generic and forgettable. Kristen Stwewart wasn't bad though and actually carried it pretty well, but I honestly didn't care much for any of the characters even T.J. Miller who was really just there to add jokes at the most inconvenient times. The creatures weren't very interesting either, although it did have some tense moments. The PG-13 rating is such a buzz kill though and is the main reason why I'd rather just re-watch the old school, classic underwater horror films of the 90's like Deep Rising, Leviathan or even Deepstar Six.
6/10