Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good. Very, very good. Not great.

This is a well-written book starting a new series by the author of the "Anita Blake, vampire hunter" series. In terms of explicit sexuality, it starts at about where the Anita series was at book ten; pretty explicit, but not up to X-Rated yet. In terms of characters and plot, this series seems to me to start somewhat more slowly than the Anita series did, but that may just be a prejudice on my part in favor of the character of Anita; I simply like Anita better than I like Princess nicEssus. The secondary characters are about on a par with the secondary characters in the Anita series, and if I'm not much taken with the background plot, I really haven't seen enough of it yet to judge. I don't think it's quite as compelling as the background plot for the Anita series, but perhaps it will grow on me. Certainly, the series is worth continuing to read.