Honestly, I was excited the series came to an end. It just seemed like the same unending plot lines were beat to death. Zollin and Brianna just couldn't quite take off (until the very end), Mansel never seemed to grow up (until the end), almost every male in the book was a pervert or corrupt, use magic-get wiped out-drink wine to regenerate cycle, Zollin (for as much as the author says he added creativity to magic) only doing magic shields, lightning, and healing etc. It just all seemed to blend together after a while. Characters didn't seem to actually grow until about book 5, in fact I felt the plot didn't actually take off until about book 5.
The other thing that just bugged me sometimes is that the characters sometimes stepped out of character. For instance, the prince that went off to the Torr (can't recall his name right now), he gets injured, sick and turns into his father all of sudden and sends 3 dragons to their deaths. Way out of character for how he was being built up in the book.