No - it wasn't 3D - but sometimes it seems like 3D is used as a gimmick to support an otherwise crappy movie. This movie didn't need it - it was a good movie without all the 3D and CGI gimmicks.
The movie was shot in IMAX so you expect beautiful camera work - and that's what you got. If you liked the other Batman movies in this series, this one was a great bookend to the series.
The best way to describe it I think is to say that in the 2 hours and 44 minutes of the movie - there were no good spots to take a bathroom break...
Pros well paced, great story, great actors, imax was amazing