Pretty enjoyable, but I don't think it deserves to be rated as high as it has been by some. Have read people saying "Greatest Marvel film yet" etc, but personally I think it gets beat out by a few for that title.
Amazing CGI and visuals though, that part of it is very well done - worth seeing on the big screen for sure..
Could just be me being an older fan and liking the stuff I grew up with more - Thor, Iron Man, Cap America, X men etc.