The reader suspects that Matheson has issues. Big ones. With women and anger, primarily. But, as the Spouse pointed out, the first two thirds of "Legend" are brilliant. Neville teaching himself science in order to figure out the world he now lives in, that's quality stuff. His own obtuseness, however, sheesh
The other stories are intense and clever, but I don't recommend reading them all together. Matheson's world is a miserable place.