What I like is that the characters are honest about being horny. Holger is hopelessly heterosexual. a disaster hetero. His love of women is used against him by the villain more than once, and each time he's like "... maybe I we can have sex before you try to kill me?" Same with Alianora, she knows what she wants.
Aside from that, it's a smart book. Ye Olde Isekai.