This isn't a book you really enjoy, but rather one you admire and secretly identify with in odd, personal and idiosyncratic ways. Most of the characters, their loneliness stems from their own self-loathing and lack of agency in their particular situations. This is most often the source of loneliness in my life when I experience it.
Not all the stories are great, but the ones that aren't are at least good. The first and last are both excellent 'bookends' for this collection.
Just like in Revolutionary Road, Yates looks at the flips the American dream and shows us the lives of many of those who find it just out of their reach.