Didn't really know what to expect from this one, and was massively put off by the first chapter with its stilted prose and the hero's ridiculous supposed American and French sympathies (during the Napoleonic Wars). But I'm not one to give up before the first fifty pages, and in the end, it won me with over with its old skool charm.
The prose is dated, true, and despite the first chapter, the story goes hook, line, and sinker for class-ism. In modern Regencies, either the concept of social class is (lightly, because its a romance not a political treatise) challenged, or at least treated as somewhat embarrassing. Not here, where pretty much anyone who spends a lot of time with Lissa, Our Heroine, is convinced her unknown parents must have been nobility because she has a respectful personality and refined tastes. The heroine herself sees her questionable parentage as meaning she will never, ever possibly be good enough for the hero. This sounds as if it is so over-the-top that it would ruin the story, and for some readers, the treatment of class probably would be a deal-breaker. For me, at least it was consistent, and was honestly probably more accurate to the way people of the time period would have treated the issue than how most modern authors approach it, and I was able to appreciate the rest of the story.
The thing about this book is that trying to summarize the plot would make it sound all kinds of messed up. But there is such an innocence to this book, both to the writing and the characters, and that it what saves it. I loved, loved, loved that the hero gave him grandfather a firm (but respectful) set-down, when he encourages him to go off and have an affair to get over a heartbreak, as opposed to the Regency genre expecting that any hero has to have at least a mistress or two in his background, and if he's a rake, all the better. I loved that the story took place over several years, and so I had absolutely no doubt that the hero and heroine would have a happy life together, because they had been so close for so long. I loved that the basis of their relationship was respect and acts of service, protection, and caring.
In a lot of ways, this book was SO old skool that I stopped applying my normal romance framework of reading to it, and read it more like a Louisa May Alcott or LMM Montgomery. No, the literary quality is not equivalent, but the style is similar, and so is the appeal of the heroine, who could definitely be called a Mary Sue, but is so legitimately good and plucky that you root for her anyway.