3.5 stars. I'm kind of torn on this one. The protagonist drove me batty. She's spoiled, selfish, weak and whiny, yet utterly convinced that she deserves to be queen (though, when you compare her with the alternatives, she probably does). That said, she starts to see the error of her ways near the end of the book and makes good steps towards fixing herself and becoming a better person and a much better queen. Character development is a good thing! I approve of women becoming stronger! I'm wary, though, because the change of heart happened so near the end of the book that I didn't get a chance to see if it'd really taken hold and really changed her, or if it was just a passing fancy.
Also, as a disclaimer, I picked this up in a second-hand sale and hadn't realized that this was the fourth book in a series, so I'm not sure what I missed in the first three. It felt like this book stood on its own better than most books-of-series do, (which I greatly appreciated, since the ending, while it left plenty of room for a next book, also didn't leave me hanging). I'm suspicious because it seems to have taken Pheresa nearly four books to stop being a twerp (assuming she was a twerp in the first three, which seems likely based on the recaps). It makes me disinclined to go back and read the ones I missed and suspicious that she will revert to being a twerp in the next one.
Edit: Largely tangential: I'd like to give props to whoever did the cover art. I see so many cover illustrations where it's obvious the artist didn't read the book, but this one absolutely did and did a REALLY good job of depicting a small yet pivotal scene with a beautiful illustration.