I enjoyed it today. The theater had a line for getting in to see it(after getting tickets, people apparently thought the "good seats" would be gone, lol) but it was only half full so that was pleasant.
There's a short bonus scene after the credits that I hadn't heard of but luckily my friends had.
I also amused myself when we left the theater, walking past the people waiting for the next showing and loudly saying "Dude, could you BELIEVE the Mandarin was Stark's dad??"
I did tell them I was just kidding. But the irate moans and groans were quite satisfying.