Too many adverbs and stilted dialogue made what would otherwise have been a very enjoyable collection of short stories into something that felt like a chore to read. Campbell explains things to death. The last story I was ready to give up after the hundreth repetition of "cold and dead". It was exhausting. And the infodumps! Dear lord! I read science fiction partly to be intrigued, mystified, and to explore the unknown. I do not need nor want infodumps - I like to find my bearing and understanding of what is going on at a slow pace, while the story unfolds naturally. Campbell explains everything at once, killing what could be an interesting mystery right off the bat.
His ideas are good, the execution of those ideas is lacking.