With all due respect, I loved the movie. I even thought it was better than the first movie. Keep in mind that it was the villians and statler and Waldorf picking on Fozzie. This didn't make me feel like the entire movie was mean, but that certain characters were fulfilling their roles. And I was a little miffed at the fact that fewer recognized Kermit, but they had only just gotten back together and it was understandable that Kermit would be going through stress and that they would have to reconnect. I partly think that the reason that they didn't pay attention to him in the first place was because they wanted things to go well so badly that they were willing to overlook the obvious. I also felt that the writers had a bit of a better grasp of Muppets style writing- inside jokes, frequent fourth wall breaks, and the idea but good will win out in the end.
I also really enjoyed how the whole relationship between piggy and Kermit was dealt with. Far from being the happy ending that fans were expecting (and in some cases dreading), we have a bit more of their old dynamic, with hints of them developing more respect for each other. It seems that deep down Piggy admires Kermit's restraint; instead of grudgingly saying "that's Kermit" when the real Kermit's seems bashful about marrying her, she embraces him. That leads me to believe that she's not as dependent on Kermit and she used to be, even though she's still pressuring him in his relationship with her. Also, even though she's being a bit pushy about it, since they are in an official relationship, she does have the right to ask some of those questions.
Plus, it had Celine Dion. And ROBIN. And cute little frog/pig mutants. And callbacks to Muppet extras seen in the first movie and in classic episodes. To me, nothing can exactly match the tone of the original show, and if they tried, it would seem too forced. But there was such obvious love and attention put into the film that I really don't have much to complain about. It was a really good birthday present to see this today. And I would've wanted to watch the indoor running of the bulls