Saw it twice already. Possibly a third viewing in the future but will have to wait till my gf gets back into town because if I go without her she'll probably kill me.
My thoughts on it are probably not needed now (considering I went twice and plan to go again) but I'll give them anyway. It was awesome!! This just goes to show you that Marvel is on the right track of making their own properties into movies now and not selling them to outside studios. I was never the biggest Iron Man fan but from my knowledge they did the character alot of justice for the movie. RDJ WAS Tony Stark, the Iron Man and Iron Monger suits looked damn near perfect (compared to the comics) and looked amazing on film.
I would easily say that this is Marvel's best comic adaptation so far. I'd even go as far as saying it's my favourite adaptation of a superhero comic yet (sin city and v for vendetta obviously not included here).