It's a delightful, charming little book about their misunderstandings and misadventures, and certainly introduced me to historical ladies' undergarments in an unforgettable manner!
There are sequels (like "Forty Plus and Fancy Free") if you find you particularly liked this one, but the first is the best, as sadly firsts so often are. This is a funny little treasure of a book.
Note: a 3 star ranking from me is actually pretty good; I reserve 4 stars for tremendously good works, and 5 only for the rare few that are or ought to be classic; unfortunately most books published are 2 or less.