Project X starts lame, really lame. However, it very slowly picks up momentum until you get something surprising. Emotions are flying high, action is a continuous rolling thunder, acting is solid, scenes are completely engrossing, and you get many a surprise. The only real flaw is that all the chicks are super hot and really easy which ruins our suspension of disbelief.
I highly recommend you give it a try. It might not be your cup of tea, but you have to go at least 45 minutes into it.
9*/10