I don't "really" live alone--I live an invisible divorce--so I can't answer as you wanted, but did read the book and thought it was very, very good. It gave a very good anthropological point of view.
The book talks a lot about how society looks at living alone and how societies accommodate or don't the growing numbers of people living alone.
I appreciated the end of the book which talked about senior citizens and how they are doing. I have a mom almost 90 on her own! It gave me a different perspective.
I think I will enjoy living alone, too. The book talked about how many people who live alone actually live a more interesting life. I definitely agree with that.
I've recommended it to many people. If you decide to read it, I'll enjoy hearing your thoughts.