Having been a fan of the comic books going on a few years now, i have to say that i was impressed with this movie. I was expecting a VERY watered down Ironman without much inspiration in Suit design and a dumbed down technological feel to Tony's overall presence. I was wrong.
Both the suit and Tony as a whole delivered bang for buck and didn't let down the entire flick. Adi Granov's suit designs were also put to GREAT use. The acting was also top-notch. RDJ hit it on the head with the looks, sarcasm, inappropriateness, and flair that make Tony Stark so likeable.