I really enjoyed this mini-series. I know some people were complaining that it focused mostly on Batman, instead of the entire Flashpoint world. But personally, this is the one Batman I do like, so I won't complain.
I found the story deeply compelling and loved that it really fit into what was going on currently in the DC Universe.
I'm so glad the Flashpoint world idea wasn't abandoned. I know the original concept lead into the New 52 and, thus, it got a bad name because of it, but in retrospective, it was a great concept.