The main issue with me was the villains, Paul as Riddler was like lex Luther from Batman vs Superman, he was weird but not scary after his mask was removed, Colin as Penguin became a funny character without the element of fear either, John Turturro is the main villain and he didn't look or feel important, except in the exposition.
Then the slow pace of the movie, the long cuts and stares could have easily been edited.
The ending was too much of a mess, even the fights could have been better, a bit more intelligence from Batman and if the 3rd act was more fast-paced I think the movie would have been wonderful.