Been a long time since I've read the books so don't remember very much, but I enjoyed the first episodes. I'm sure if I recently read the books whatever changes they made would bother me, like it did for legend of the seeker(sword of truth). They did change up Will's background, his parents were suppose to die earlier, and he was suppose to be trained in healing before meeting up with Allanon. I guess they felt the need to compact his backstory, as with any transition from book to show things will get cut and moved around, even game of thrones has also done it although they try to keep it to a minimum.
Production value looks high for a fantasy tv show, closer to game of thrones than compared to other recent fantasy stuff like legend of the seeker, merlin, and atlantis. Hopefully they didn't blow their load on cgi for the opening episodes. Still a good start to me, and something to fill in until game of thrones is back.