I know that the above work is not exclusively about our period but have any our members read it and be willing to express an opinion? I did a quick scan of the currently reading section but could not see a mention.
Afraid not, though like you I have been considering it.
There's a review at https://www.theguardian.com/books/2020/mar/12/beauty-terror-catherine-fletcher-review-alternative-history-renaissance which you may have seen; the reviewer finds a lot positive in the book, if marred by "notes of 21st-century disapproval".