For those of you who didn't like it, your expectations were too high.
My expectations were pretty low, actually. Not like wanting it to be bad or anything low, but i understood that one of the major factors that mad TDK so great was Heath Ledger's performance as Joker, and as much faith as I have in Tom Hardy, JGL, and Anne Hathaway, the sort of performance we got out of Ledger isn't something that duplicates easily.
I walked into it expecting it to be the Return of the Jedi of the Batman Trilogy. I walked in with the exact same level of expectation on DKR as I did on Amazing Spiderman. Both movies surprised me, just in different directions.
I have some very specific reasons I didn't like this movie, but I'm unwilling to post spoilers, so I'll be as general as possible (though if you're worried about spoilers to an excessive degree, I'd still avoid what I'm about to write). I'll start with what I liked, then move into what I didn't.
I loved Anne Hathaway as Catwoman. I can see why she and Nolan are considering doing a movie together about the character. I especially liked how frequently the name "catwoman" was used (read: never). She was, however, completely superfluous to this story/plot. I mean, top to bottom, she wasn't necessary to the movie.
I actually quite liked Tom Hardy as Bane. Every scene he was in (up until his last one... and I mean, the last 2 seconds of his screen time) was just power in-presence. He commanded every scene he was in, dominated every situation. He was, as someone has pointed out, a boulder pointed down hill, and no matter where you run, he was rolling right at you
Joseph Gordon-Levit stole the movie for me, though. He was an amazing character as John Blake, and brought everything to the role that I could have hoped for. I could have watched a John Blake movie for three hours. I felt like, in addition to JGL being great, the character represented what Bruce wanted from the beginning. We spent all of TDK talking about Harvey Dent as the "White Knight Gotham needed" because he could do what he was doing without a mask, and then in DKR, we get Blake, who is essentially Bruce without money. And without the need to wear a mask. He, at one point, even scoffed at the idea of wearing a mask. He was what Batman was supposed to cause. He was the "win" for Batman. Which is why the last scene and what it implied really really disappointed me.
So, that's what I liked.
What I didn't like...
Nolan is great for symbolism. Symbols and standins are one of his strengths. But in this movie, he really just used the symbols and flipped us off with a "it's a symbol, jack hole, don't ask questions."
The prison had no context, no location, no timeline. Characters showed up there (wherever there was supposed to be) between scenes of them doing time-sensitive things in Gotham. I've read someone saying "as a medical professional, the scene with the spine made me laugh." I reject that. I am not a medical professional, and it was still ridiculous.
The big twist in the ending, despite being broadcast from the first 10 minutes of the film, (and I can't make this point without minor spoilers, so if you're still reading, don't...) left a great villain for the movie as a lackey in the service of someone who had literally less than 5 minutes of screen time/development. And 5 minutes later, that lackey was killed without a second glance by a camera, to facilitate a quip by Catwoman.
I disliked the fact that we were watching a movie about a Bruce Wayne who was just a tough guy in a cape with money, rather than a detective or, you know, even above average intelligence. Batman is powerful as a character, not because of his physical attributes, but because of his mental ones. These mental attributes are downplayed significantly, especially in the beginning of the movie. I can't enjoy a batman who'd hang up his cape because his girlfriend (not actually his girlfriend, btw) bit it. I can't enjoy a batman who is only batman because it's all he's got left. Bruce was barely Batman in this film, and when he was, he still wasn't Batman.
I hated the Batwing. I know that we've been sold this bill of goods that this version of Batman is more realistic, grounded in the real world, and all of that rot. And I can buy it, despite it being a stretch. But the minute that Foxx said "turbines without recirculated air" I balked. And it looked silly. And then it was on the screen for more of the movie than Batman himself was (yes, I know we can say that Bruce was in the Batwing every time it flew, but that's not Batman being on the screen). I know it was important to establish the Batwing for the climax of the movie (though, when you have to establish Batman's new gadget in order to fulfill the climax of your movie... for the second time in a row... you're in Bat Shark Repellent territory).
I felt like the plot was a muddled mess, asking us to trust that certain things just happened, and then to forget other things were happening. Once again, spoilers here to an extent. If you read any spoilers, it's really your own dang fault at this point. The sense of time was way off, to the point where during the pivotal 5 months of the film, no one's hair grew; no one grew a beard. One of my friends had to resort to suggesting that 3000 people stopped off at home for a shower and shave before marching on city hall. This, again, goes to our "Screw you, it's symbolism" attitude. The ruling class of the city (Bane's soldiers) are all depicted with scraggly beards and hair, while the refugees who were being given just enough food to survive were all clean shaven.
And then the ending. I wont talk specifics. But the nice little bow wrapped around everything, the happy ending, made me very disappointed. The final scene with Blake made me dislike Bruce even more.
I left disappointed.
I walked in saying "as long as this is better than Green Lantern, I'll be happy." I guess, by that definition, I was happy with it. It was far from the worst comic movie that's come out in the last few years, but it was only the third best to come out this summer.