I saw it too. The Asgard moments are EPIC. Midgar part of the movie is very entertaining, with action, humour and lots of marvel references. All the actors are amazing, and Loki really owns the movie. Soundtrack is really good. Story and character development are a bit rushed because it wants to tell too much in a single movie, but it's ok for me anyways.
Hawkeye is in the movie! The actor really looks good for the character, I'd have liked to see him more.
The fight scenes with Thor are incredible: he's just like in the comics. Spinning his hammer, creating a storm, flying, etc. He is really over the top but still credible, which is the real challenge of a Thor movie.
Not everybody will love it (it's a very different superhero movie, with all that fantasy/scifi stuff), but it's definitely one of my favourite comic adaptations so far! Really worth watching on the cinema. And 3d was fine for a post-production, best 3D conversion I've seen (but you can save your money if you don't care about 3d, it's not avatar quality).
Now if you need to know about my taste: I like and hate all superhero movies at the same time xD
The ones I just hate are Spiderman 3, Ghost Rider and the first Punisher. Wolverine sucks and Daredevil was so meh I just don't remember it. Both FF movies are funny but somehow irrelevant. But I really enjoy watching X-Men 3, Punisher Warzone and I loved Iron Man 2 even more than the first one, so it seems that I use to like superhero movies with lots of epic action and less character development (I know who the characters are, I just want to see them kicking some supervillain asses)