Radiance

This rates a 3.5 for me.
I like that fact that the romance was built on the emotional rather than the physical (so I can actually picture it lasting more than 10 days). I also really enjoyed how they avoided the purity and sex issues.
What made me rank this 3.5 instead of 4 was it felt to much like a build up. The plot felt as though the entire book was just setting the scene for a larger series. As a book by itself it was very unsatisfying.
I will probably read the next Wraith King book in the series.