I saw it in theatres and bought it the first day it was out on BD. I loved it, breathed new life into the whole Vampire genre. Was really impressed, the ending wasn't the best (Don't worry no spoilers here) but the suspense and everything else, especially the gore, was extremely well done. I have found it's a hit or miss movie, you either love it or hate it, me and my girlfriend loved it, where as my sister and her boyfriend weren't too keen on it. But ya, watched it again the day it came out , still loved it .
First movie in a while that creeped me out some, I'm pretty desensitized now.