In addition, this one seems to have a far greater focus on sex. Not that it's a bad thing in general, but it did feel sort of in-your-face here.
Overall, I really had to convince myself - repeatedly - that I *could* finish this book. Honestly, had this not been a Vine book, I would have just put it in the DNF category (which is quite rare for me), and called it good. So - if you're a die-hard Xanth lover, then you'll probably be fine. Otherwise - give it a few chapters and see how you feel.