"What the Left Hand . . . was Doing" was OK. I was able to read it without skipping. Pretty much just an action/adventure/spy story, and it could be rewritten without the speculative elements by Ian Fleming or some other current creator of espionage fiction.

I didn't have a problem with the notion of secret agents with various psychic powers as a plot gimmick, but it got too extreme for my taste. (Flying across the ocean!)