If you believe the perspective of Christopher Nolan's Trilogy of Batman, then you're gonna be disappointed. The movie doesn't continue that version of Batman (This is why it felt boring in the first watch, I wanted a hero movie ). Now , if you clear your thoughts and watch, the attention to detail. The impact of batman being shown. The acting of Robert Pattinson was superb. Loved it. I would've gave 2.5 on my first watch (just completed trilogy), now I thought let's try it again and boy it is at least a 4.5 stars . The last message in the movie is awesome (SPOILER CAUTION).
[I have had an effect here, not the one I intended, Vengeance won't change the past]
Mind blowing movie. I wish I could see this in theatres.