If you're looking to read, it's fantastic. All of the characters are very well written and the ways they act make sense once you get the bigger picture. Now that I've said this..
DO NOT READ OTHER COMMENTS IF YOU HAVEN'T PLAYED AND CARE ABOUT SPOILERS.
This comment section really needs to be cleaned up / turned into a discussion board. I've had a few friends get spoiled on some big plot points now because of all the talk down here.