Haha, I read this thread, but I still had no idea the movie existed till today. I'm awesome!
Anyway, I heard it existed today, so decided to go see it before the fancy passed.
Overall, it was well done. It was well made and Rob Zombie did a hell of a job directing it. Since this is only his third movie, I'm very impressed with how nice it looks. He's always been a horror movie buff, and you can tell that, at several parts, he was most likely putting his fantasy on the screen. One scene that comes to mind is being trapped in an empty swimming pool, you just know that's probably one of those things that he's been thinking about for years. Another was when MM was breaking up the ceiling. From that angle, it was really awesome. Plus, Zombie doesn't pull any punches in his movies, he'll show the gore in complete detail, and even push it too far sometimes. But I like that, too far is good.
The downside to me is that the part between him going back to the neighbourhood and the end felt long and boring. I really liked the part where he was a kid, and the part when he was in therapy, and the part where he escaped. All that stuff was really cool and interesting. But when it got to the running around killing, it seemed to start dragging.
And something that bugged me: why did the doctor buy a revolver? I mean, sure, it has stopping power, but if you don't kill him on your first 6 shots, you're screwed. There's no reloading if you're being chased. In his position, it makes more sense to buy a gun with more ammo capacity, say a glock (or whatever), and to buy some extra clips. Luckily for him, that didn't become a problem. Also, the professor was pretty stupid to run off on his own to face MM, that's a great way to get killed. He should have waited for at least one cop to come with him.
Overall, though, cool movie. If you love graphic violence and movies about serial killers, you'll probably like this one. If you haven't seen Zombies other movies yet (House of 1000 Corpses and The Devil's Rejects), go rent them!