Just saw the movie 2 nights ago, and here are my thoughts on it:
Though I've seen so far 9 movies this year that, with 1 exception I enjoyed, there were only 2 movies I was really looking forward to in 2011: Scream 4 and The Muppets.
And let me tell you, both of those movies did not disappoint. The Muppets was a great movie, bringing back the magic of the past movies and the Muppet Show.
The jokes were great and not obnoxious, unlike the Smurfs and Alvin and the Chipmunks movies. I laughed at the kidnapping of Jack Black, Gonzo's "Blow up his business" button, the picking up the gang montage, and many other jokes I don't want to give away here.
I liked the main human actors in this, and more importantly, how they didn't take the spotlight away from the Muppets themselves, and I found the songs to be some of the best I've heard in a movie for a while.
Overall, I highly recommend the Muppets and I give it a 9.4/10
