I've read the tawny man series first because I didn't know about the Farseer trilogy and it's not in the library. Anyway. The characters in these books are very real and I really cared about what happened to them. Maybe a bit too real because Fitz got really annoying in the end. Fool's Fate left me with a vague feeling of dissatisfaction. I wish he had have talked with the Fool properly and accepted all his resposibilities seiously and not been a stupid idiot the whole way through the trilogy. Maybe he acted like a real man and not a formula hero but the events that happened to him seemed to always show his annoying side and didn't give him a chance to not be annoying. I think they're well written but could be richer. I guess I should read the first trilogy before saying this but his relationship with the Fool seemed to be all on the surface and I could see nothing really there except a bit in the first book when they are talking in his cabin. They're always arguing/not talking to each other/Fitz doesn't understand.
Also there should be some sort of warning in the front that it's not a trilogy on its own and the Farseer trilogy should be read first. The first third of the forst book was really confusing trying to piece together what Fitz was saying. It's also really annoying when authors recount what happened in an earlier book and waste pages when they could just tell people to read the other book first.