This reply wasn't addressed to me, but I thought I'd throw out my own answers since I estimate me and that user have similar feelings (except I'm not sure why he thinks the ending sucks, and I probably enjoyed a lot more of the film than he did judging by his approach to posting about it lol).
1) I liked it, it was funny but I guess seeing Batman actually defeat him is what a lot if people really wanted and I understand that.
For me, it was more the lack of a philosophical climax for the major villain. We got that with Ra's and the Joker, so I had an expectation of that being the theme of the trilogy.
Bane had little meat to work with anyway, apart from being a scary successor to Ra's mission and having a mysterious past, which was cool, but also not a lot to roll with in terms of an original, new philosophical punch, in terms of compelling moral theme, so his climax was the moment to save that disappointment from cementing itself. Alas....
Also thought Bane deserved better than to be almost comically blown away by Catwoman on the Batpod, after lowering himself to pointing a shotgun at Batman no less.
All of that combined nearly killed the buzz of that scene for me. Loved the tiny bit of extra backstory we got from Talia about him, though.
2) I think it was just poorly edited tbh
I felt it was too cliche. But I suppose whether or not you feel that way depends on how experienced you are as a watcher of various media. There are utterly countless superhero moments or anime moments in history where the character has a countdown timer on a bomb and it looks like he didn't make it, but surpriiise! Of course he's okay, silly goose!
It also is too strong a reminder of Adam West running around like a goofball in the 60's show (which I like as a separate entity, but don't like to think about in tandem with serious Batman, it's distracting, breaks the atmosphere).
'Some days you just can't get rid of a bomb!'
3) didn't really notice, care to elaborate?
He says a lot of obvious, lame things, and very few profound or intelligent things - as Batman, anyway. Bruce, oppositely, had awesome lines. I would even say Bruce was more 'Batman-like' than Batman in many important ways.
They established a fine balance of this in the last two movies, so I wasn't prepared for Batman to have so little to say - especially to Bane.