I thought the "Duke" character was much more likable than most similar characters in the genre. Both the hero and heroine were vulnerable and admirable. The description of war was also more realistic than most Regency romances. There were some weaknesses and gaps in the plot, but I truly enjoyed reading a book where the main characters actually LIKED each other, tried to protect each other without a lot of stupid misunderstandings, and were both sympathetic.
The title, cover, and jacket description don't really give an accurate expectation of what the book is about. This was one of the most human romance novels I have ever read.