I watched the [REC] series this past week. I've seen the first two once before and still love them. The second didn't have much going on but the ending was amazing.
The third...
I was contemplating whether or not to watch it after the negative reviews but I decided to anyway. Oh my god, just so awful. The fusion of found footage with formal direction was an awful idea. The setting being a wedding was pretty uninspired. The story was corny as HELL with the "knight in shining armor" crap. There was too much comedy. The placement of the Medeiros girl completely ruined anything scary about it, especially since she's only supposed to be visible in the dark... everything was just awful. In complete honesty, Quarantine 2 was better than this and that movie was direct to DVD. I can't believe they would tarnish an incredible, innovative series like that with the sloppy and generic third movie.
I'm glad that Jaume Balagueró is back for the fourth movie but I'm pissed that it's not found footage. [REC] 3 wasn't scary in the SLIGHTEST but the first two were, especially because of the usage of night vision.