Just finished Kushiel's Dart a few days ago. If you recall, I accidentally read the third book, Kushiel's Avatar, first; Kushiel's Dart is actually the first in the series.
You will like this book if you:
Like long, epic fantasy narratives (it's 901 pages long)
Enjoy detailed descriptions
Love to immerse yourself in a truly well constructed fantasy world
Appreciate complex characters
Are open-minded
I enjoyed this book so much that I seriously could not put it down for days. My schoolwork suffered. Even my facebook games suffered! (All those withered crops...) Kushiel's Dart was one of those books where you cannot put it down, you just have to get to the end and find out what happens, and then when you finally do finish, you're sad because now you have no more to read. Since I do not own the second book, Kushiel's Chosen, I, uh... went on wikipedia to find out what happens next. Very shameful, I know, but I just had to find out what happened! Granted I knew some of it because it had been vaguely mentioned in Kushiel's Avatar. Last night, my roommate came in at 3:30am and yelled at me for being awake still (since I am sick). I was reading the first chapter of Naamah's Kiss, which is posted on Jacqueline Carey's website. I just can't get enough. It's a good thing I do not have a car, otherwise I'd probably be at a bookstore buying all the books. Heh. And as a college student I don't think that's exactly the best use of money...