If you have preconceptions that keep you from reading romances, set them aside and approach Gwendolynn Thomas' novel, Spinster's Gambit, as just that...a novel.
While dressed in the finery of a 19th Century Regency romance, I found the characters to be as intriguing and the plotting as interesting as a work which would typically be classified as literary fiction.
These characters, although bound by the society of their day, are relatable to a modern audience.
I would even describe this as an important book, with an approach to marginalized groups which treats them as human: not superior, not inferior, and that is indeed refreshing.
The book was also well produced: as few proofreading errors as I would see in a book from any of the "Big 5" traditional publishers (I only found a couple of minor issues).
It also appeared to be well researched: there were a few things where I questioned if they were period appropriate, but nothing glaring...and so much of it was clearly historically accurate that I wonder if the ones I noticed might not be correct as well.
My one significant issue with the book is that there is an explicit "love scene" in the book; while not anatomical in its detail, it is...descriptive. Certainly, it is organic to the story, but felt a bit obligatory for the genre. For me (and I know this reflects my taste...it may not reflect yours), I would have given it a five star review if it had ended at location 3179 in Chapter Thirteen: if you prefer not to read that scene, you could stop there: you'll see a break indicator on the page.
Suitability for text-to-speech: quite good (I listened to part of it, sight read part of it). The only problem there was those break indicators, which were read aloud on my Kindle Fire HDX as "tilde slash tilde". :)
Bottom line: this is a well written novel, to be lauded both for its characters and its diversity. If you have never read a romance, this would be a good place to start. However, a "love scene" may not appeal to all readers.
Full disclosure: the author is a friend of a relative of mine. However, I don't believe I have ever met the author socially, I have no connection to the production of the book, and purchased the copy I read from Amazon.