I quite liked it. It took a little while to get started, and like the other two movies in this… triptych?… it was actually about something else than what shows up in the trailer; but the former was (as Howard Tayler noted) forgivable and the latter wasn’t really a bug. The only other thing that I can think about this film that might give people cause is the language, which is pretty much why the movie got an R rating. British profanity is a good deal more, ah, robust than ours; and the movie took full advantage.
Still, great flick.
PS: There’s a hell of a lot of stuff going on in this film in the background and under your nose; I’m going to have to watch it again for all the subtleties.