Acting was all good or great, even from people that usually aren't (Josh Hartnett, Brittany Murphy). Women were hot, guys were ultra cool. I thought Clive Owen was a standout, which isn't surprising as he's one of the best actors in the bunch.
The visuals, of course, were phenomenal. I've read some of the Sin City books, and it really is amazing how well they were able to capture the comic panels.
However, after leaving the theatre I realized it wasn't resonating with me very much. To compare it to another recent geek favorite, I was much more emotionally connected to Kill Bill, where you actually could feel something for Uma Thurman's character (especially in Vol. 2). Sin City was great to experience, and as a film noir buff it was so refreshing to see something like it in the theaters. But I'm not really thinking too much about it a day later.
Bring on Revenge of the Sith...
laz