PKD - one of the most inventive SF authors ever and a prolific writer of novels and short stories. Unfortunately some of these stories have become predictable because since they were written the ideas have been recycled too many times. Others are unintentionally amusing as 1950s gender roles survive unchanged several centuries into the future - but people will say the equivalent about much contemporary SF in 70 years from now, too. Although some of the stories are conventional (e.g. consequences of nuclear war) Dick, like Bradbury, also wrote a different kind of SF from most of his contemporaries. Not interested in pulp adventure stories or stories that turn on some application of science, Dick instead starts to question identity and reality. These themes began in this volume (1950s) and came to dominate later. Of course, this is a new viewpoint on the age-old question of what it is to be human? An angle that also was adopted and developed into a staple SF theme by those who came after.
Which is all to say PKD was a pioneer in many ways and I should read more.