I am sure that there would be no one who would not like this part of Iron man as it beats all the other parts. Good casting is one of the main reasons.
The villain in this part has done justice for this role till the end. One thing which I didn’t like about the movie is the fact that the movie series ends with this part, however we can definitely see Iron Man in the other series. One awesome thing about this part is the variation in the number of suits and the way Tony suits up. UR really gonna love it