This reminded me, very much, of a cleaned up version of The Beans of Egypt Maine. The Beans, though, was written from the perspective of the "shack dwellers," where this was written from that of the townspeople. I also agree with the Introduction to Peyton Place that the Beans are more caricatures of individuals, whereas Metalious's characters are more dimensional and believable.
Metalious writes very well about northern small town New England. The descriptions of the of the people and places ring true and are not forced. I was frustrated, somewhat, by the rather prosaic descriptions of Indian Summer, which occurred at least twice and was functioning almost exclusively as a metaphor (not quite as bad, though, as Wolfe's "island fortress"). Generally, though, she captured the color well and I enjoyed reading.
I was put out of place a bit by the year the book was set. I kept thinking it was set around the time the book was written (mid-1950's) instead of about 15 years before. The war seemed out of place due to that. And the times when the years were identified ("Class of 1939") it stood out to me like a sore thumb. I think Metalious could have gotten away with setting the book in some undefined and undefinable time.
As with most books that ere once banned or considered deviant, now the idea seems quaint. I think I've read modern "teen" books with more sex and "shocking" behavior in them. I suppose, though, the more shocking idea is the extent to which the characters kept up appearances and took the mantra "live and let live" to the extremes. The realization to the reader was that even polite, idyllic small-town society has its secrets and often they are kept by the whole town.
As a former and probably future resident of small-town New England, I found the characters quite believable and the secrets very true. Overall, a good read. Well paced and written.
8/10