My take on "Paranormal Activity": there was a lot of story build up and repetition, like a long joke, in a way, with not as much of a payoff/spook out as I expected (and I spook easily). There were some pretty low budget, and a few higher budget effects, and I did have to turn away for some parts (I spook easily). I'm still thinking about it days later, so overall I think it was worth seeing.