I have always been drawn to stories of time travel. The best book I have read was Time and Again, by Jack Finney. I am sorry they never made a movie out of it, probably because it was more subtle with less action than other sci-fi stories for most of the book. But there are plenty of time travel movies out there, like this one. The fact that teenagers are using the device to travel in time, plus the fact that - at first - they can't travel back more than a few weeks, obviously was put in place to limit their ability to travel whenever they want. So instead of trying to prevent a horrific world event, for instance, they are jumping back in time to tweak their own lives and mistakes. If you have watched many time travel movies, it isn't a spoiler for me to say things don't go exactly as planned. There are a few clever plot twists here, and I mostly liked the chemistry between the lead characters. The dialogue became a bit wooden here and there, but overall the writing wasn't bad. I have to say my biggest gripe was with the hand-held camera routine. I almost wonder if they used it just to honor another movie with the word "Project" in the title, if you are wondering 'witch' movie I am referring to. But whatever the reason, it didn't really work for me.Their reasons for always lugging the camera around, even when there was just one character, fell flat for me. For the loss in camera work quality, there wasn't enough of a gain in plot or character interaction. But it didn't cause me to give up on it, just to wish it lived up to its potential. I am not going to comment on the ending and risk giving anything away, except to say that it felt a bit anti-climactic to me.