Saw the midnight premiere here in Sweden. Watched the 3D 48 fps version and I honestly liked the format, which is funny since I just am not into the whole 3D thing at all. Some of the scenes were just excellent, especially the action scenes since you were able to see pretty much everything. Though, I don't think 48 fps works in every scenario, so if movies will continue to use this technology they would have to adapt a mixture of 48 and 24 fps to create good motion for everything on screen.
As for the movie itself, I really, really liked it. Was a lot of fun and had a lot of good things going for it. An improvement from the previous installment, I have to say, and I liked the first one quite a bit. Looking forward to the last movie.