I saw it last week. It was alright as far as movies are concerned but compared to the other three beforehand, it wasn't the best.
I can't really put a finger on it but it felt too crisp. It, in my opinion, lost the life the original three had. It might be the way it was filmed, or the special effects, or the fact that it tried to incorporate similar parts from the previous three movies into this one, rather than everything new.
It just felt like the movie itself was trying too hard or something. Anyone else who saw it have opinions about it?