It wasn't a bad book by any means. The fanservice-y bath scene felt unnecessary and was honestly a little annoying. Prose-wise, I disliked the way the chapters were structured and would have preferred the sub-chapters be made into full chapters of their own. I also feel like the pacing was off. Additionally, I feel they should have utilized dialogue tags better, considering there are often more than two characters talking.
Aside from all that, it was a fun book to read and I may end up reading more in the series at a later date.