It's a long time since I read the original Millennium trilogy, not quite as long since I saw David Fincher's version of The Girl with the Dragon Tattoo. So to re-familiarise myself with Lisbeth, Mikael and all of the confusing Swedish names I watched the original Swedish Movie Trilogy, which I had never seen before. I don't know how much it really helped, the movies were just kind of depressing and you don't get the intricate detail of a book, obviously.
Lisbeth is still an interesting character but you don't see her as much, and she's not as salacious as previously, though she can still be violent when necessary. Mikael I find annoying in this latest book, people are always mentioning his brilliant journalism. I found the new character of August Balder, the autistic son of Frans the most compelling.
I was left with some questions about a possibly dropped plotline of an insufferable side character, Ove Levin's, oddly personal quest to discredit Mikael in order to make Serner media's acquisition of Millenium Magazine smoother. It was all just tidied up in a few lines at the end after a lot more time was devoted to him personally in the beginning.
Anyway, tiny gripes aside it was a good quick read, I enjoyed this and give it 3/5 Chainsaws.
For an actual plot description The NYTimes has a great review here.