This game gave me a mixed feeling. From one side, the story and battles are great, very well elaborated. However, on the other side it has a not very elaborated exploration system, very linear, like going though a tunnel mixed 2D-3D.
I started to watch the TV show on Netflix, it looks interesting. So far the game resembles the season 1 of the TV show.
The game has decent graphics and great soundtrack. Story and characters are very well developed. The game goes from very easy to some hard fights (not impossible). It takes like 10-12 hours to be beaten.
I think it is worth the time spent on this game. Try it, specially if you are watching the series and like it.