The characters in this book were quite exaggerated and annoying, and I felt there was very little chemistry between the hero and heroine. The heroine at first seemed like one of those tough, brash, 'doesn't take crap from anybody' types, but she came off as more sarcastic and silly. The hero was pretty typical, but he had virtually no personality. And I know this is personal preference of writing style - but I really hate when a character's dialogue is written with a thick accent, and this hero's most certainly was. I find that to be a huge distraction when it's overdone, and I felt that it was in this book.
There was a lot of steam - which is fine with me - except that in this book it was more gratuitous and did not add to the story at all. In fact, while reading the steamy scenes I sort of felt like I was a voyeur and it was almost uncomfortable. I would have felt differently if I was able to like the characters and actually want them to be together, but I really couldn't have cared less. Much of the interaction between the hero and heroine was suggestive, flirtatious innuendos that would be better placed in a modern bar scene rather than medieval Ireland.
If I could, I'd add a half-star for the ending (which I almost didn't get to) because the author included a section on the true historical facts of the time period and setting, and she outlined where she took some artistic license to help make her story better. This was interesting and helpful and I wish more historical authors did it.