I wish I could have the rave reviews that some people in this thread did, but I don't have that sentiment.
Now, I first saw Quarantine (at a drive-in, no kidding) before I saw [Rec]. I thought the remake was fine-enough, but then I watched the original on DVD and I did enjoy that quite a bit more. The American version definitely screwed up in the final 10 or so minutes, I say.
I finally was able to get this via rental and I just finished watching it minutes ago. Sure, there were some cool moments, and I liked the idea of this being like Aliens to the first one's Alien, but...
Overall I definitely did not like the sequel as much as the original. What James said about how the story turned out and the demonic possession angle given the filmmakers carte blanche to pull stuff out of their ass, I strongly agree with that. The more they expanded upon the story of the first, the stupider it got. Really, you don't want to think about the story too hard once you're done watching this, or else you'll see that some stuff just makes little to no sense at all. I preferred the story as told in the first movie. I wish they wouldn't have explained further what all the hullabuloo was.
I also agree with James on the elite SWAT team acting like a bunch of Hudson's, especially that one dude. It just got annoying after awhile. I got annoyed with all the damn arguing and bitching you heard in this movie too, between the priest and the SWAT team, and really, all the other characters you see bitch and moan at each other constantly and I really got in it once the movie jumped the shark by...
Showing some shithead teens trying to get a blowup doll to fly in the air via bottle rockets! I tell you, that subplot really tanked my enjoyment of the film. I loathed all three of those whiny arguing brats, I did not enjoy listening to that asshole fireman constantly griping at them, and I was glad when they were disposed of and you could move on with the story. Then, that whole "you can only see it in the dark" thing, which makes zero sense at all, and the final plot twist almost made me throw the remote control at the TV in anger; talk about a twist making the preceding hour and a half pointless.
No offense Rene, but after seeing that movie I do NOT look forward to ever seeing the next two movies in this series, I was so ticked off with how this movie sucked and ruined what should have been an awesome idea of a SWAT team vs. infected people motion picture.