I finally saw this last Saturday.
HATED the opening credits. What a stupid waste of CGI budget $$$

Love Karen O but that cover of Led Zeppelin was just as useless as the graphics.
Overall I thought the movie was very good, and in general better than the Swedish version. It was truer to the book and got closer to conveying the overall tone. And it was less graphic than I'd feared - thought the rape scenes were going to be worse than they were

Still very hard to watch, but I expected worse.
There were some small issues, though...
1) The accents. It's nice that Mara made an effort to establish a credible (did she succeed? EW says yes, I'll leave it to the Swedes to agree or disagree) Swedish accent, but Craig didn't bother one whit, and neither did Plummer. plus, there's already a suspension of belief in place, given that the film takes place in Sweden and everyone is speaking english. I think consistency among the leads would have been better.
2) Uneven casting. Mara was very good, and I think Craig was excellent. My favorite casting, though, was Robin Wright. her role was small but she really inhabited Erika. But Bjurman was either miscast or (more likely) misdirected... this is a character fueled by anger and malevolence and the actor here played him far too sympathetically. And Goran Visnjic and his spray-gray hair were just laughable.
As for Noomi vs. Rooney....this is definitely a career-maker for Rooney Mara, but I give the edge to Rapace. Both were very good, but it felt like Noomi Rapace WAS Lisbeth, and with Rooney Mara, sometimes I felt that and other times I was extremely aware of the Very Good Acting going on. As with the Bjurman character, I'm not sure if that's the acting or the directing, as the film itself seemed to take great pains to highlights certain things that felt wrong, rather than it being a problem with the acting.
Overall still an incredibly strong film and I will definitely be seeing the other installments when they come out.