Enjoyable, but nothing special as far as Heinlein goes. The first novella bears striking similarities to Friday
- not necessarily the overall thrust of the story, but many of the trappings (secret agent is followed, captured, freed, taken to a farm where s/he learns to embrace his/her full potential.)
The second novella I liked more - it had an odd touch of mysticism, for Heinlein, although many other of his common themes. And the two short stories that comprise the rest of the book were enjoyable to read, but probably won't linger in my memory.
I'd say read it if you love Heinlein. It's not disappointing, by any means. It's just that many of the same points he has made, and made better, in other books.