And since I have now read everything Richelle Mead has published, with the exception of Soundless and the Glittering Court series, I believe I can say I am an avid fan of Richelle Mead.
Georgina Kincaid is a succubus and has been for almost 2000 years. Her current setup is in Seattle and she is the assistant manager of a large bookstore. She has work friends and immortal friends and this series deals with all of them.
There were some surprises in this series, but I am a longtime reader of urban fantasy, so it's hard to really throw a curveball that I don't see coming. The book I was least impressed with was the last one. I am not a fan of tidy endings. But I do like the foreshadowing Mead threw in during the series. One of the best things about this series is that Georgina doesn't really have any powers, other than her succubus shifting powers. But she still manages to hold her own with her wits, personality, and the help of her immortal friends.
Overall, I recommend this is you're okay with some pretty intense sex scenes. Georgina is a succubus, after all. :-)