Overall, it tells the story of the dying and relatively short-lived culture of upper-middle class Americans, and the transition into a much more efficient society with less emphasis on tradition and more emphasis on progress. Some characters are made fun of, as is the culture itself, but there is also a genuine longing for the sense of stability, comfort and togetherness that the culture provides.
In summary, it recounts the story of the waning and short-lived upper-middle class American culture, and the transition to a more efficient society with less emphasis on tradition and more on progress. Some characters are mocked, as is the culture, but there remains an earnest desire for the stability, comfort, and unity that this culture provides.