I am a HUGE Heinlein fan. I hate For Us, The Living, because I didn't understand a lot of it.
I gave it to my best friend who has never read a Heinlein novel, EVER. And I know, it's the WORST book to give to someone to introduce them to Heinlein. HOWEVER, it was her gift for getting her masters in economics.
She LOVES the book (and understood it). And has no interest in any other Heinleins.
I <3 Heinlein.