I found a couple of his in the thrift shop - "The Illustrated Man" and "The October Country", and as I hadn't read him since I was about 13 years old I picked them up and tried him again.
As a kid I loved him. And as an adult? I remembered the ends of the stories as I read them. The stories - the endings, especially, formulaic, occasionally predictable, twist endings, ironic, surprising (not often) - the plotting, the themes, that's not the main thing with him. 13 was the right age to fall under his spell for sure. But what's impressive is his use of adjectives, his evocations of mood, his descriptions, his intonation of charms, whispered, spoken, sung, the rhythm of his words, poetry almost, yet managing no meaning above the fantasies, images and moods he creates...
Surprisingly well written kids books I'd say, filled with imagination. But for adults, well...tastes change.