The Matt/Daredevil character was reasonable; you could tell he was just a deeply angry guy, not a split personality like Batman, or a goofball like Spider-Man.
Bullseye was excellent! Absolutely perfect.
Kingpin was acceptable; I'm glad they kept him smarmy. Urich and Foggy were also pretty faithful.
But as predicted, Elektra makes the baby jesus cry. She was just totally wrong in every way: not only physically, but character-wise as well. She should have been built like a T2 Linda Hamilton, instead she looked... completely malnourished. And instead of being a sociopathic spoiled brat who worked as an assassin for kicks, she seemed like she was about to burst into tears at any moment.
The plot seemed rushed; I think the origin story, plus Elektra, plus Bullseye, plus Kingpin was just too much to fit in a single movie. Especially Elektra; they really should have just left her out (but then there wouldn't be a Love Subplot, and every action movie must have a Love Subplot, right? Sigh...)
The Dare-o-vision effect was handled pretty well, though his ability to "see" seemed to fluctuate pretty wildly through the movie without much explanation.
There were a few really bad CGI moments. There was one where DD basically runs up a wall by hopping off window ledges that looked totally fake -- and the thing that struck me most about that was, the fakeness of it made it look like this impossibly ridiculous maneuver, but I've seen Jackie Chan actually do it! Less CGI, more stuntmen, that's what I say.
The Graeme Revell score was cool as always, but the Requisite Corpo-Rock Hits were especially intrusive this time around. Is there a genre name yet for that particular brand of whiny, nasal hard-but-not-too-hard rock that half the radio sounds like these days, you know, all the fucking Perl Jam wannabes? Make it go away.