If I hadn't read the books I'd probably like the show better. The show does a better-than-average conversion from one medium to another but I keep envisioning how it could be sooo much better with minor tweaks here and there that bring out the nuances of the characters.
The books are very character driven with the characters evolving over time. It seems the TV writers are stuck in the mindset of most TV programs that nothing long term can change by the end of the show, and that's holding it back.
I find that the characters are lacking depth in the show. I keep catching things that were so telling and important in the books, (like the sword of truth turning white to kill Denna, or killing with it red affecting the wielder) that are glossed over in the TV series.