I stopped reading this series a while ago, but was persuaded to pick this one up because of good reviews. And this was generally a good read.
I do like Mercedes Lackey's take on The Tradition - it's clever and delivers an entertaining twist on the traditional fairy tale, while the same fairy tale elements somehow means I can give the "too-perfectness" of the protagonists a bit of a pass, because it fits the worldbuilding (whereas the same aspect just tends to frustrate me in other recent Lackey books). Having said that, I found it difficult to differentiate between the heroes/heroines, and as a result, never really empathised with the characters. A good, if not memorable, read.