I believe I have read just over half of Heinlein's books, and have never been disappointed.
He has easily become my favorite sci-fi author. Even so I would have to agree with the rest of you and say that the ending to Fear No Evil was abrupt, and left me wondering what actually happened.
I did like the whole concept of a complete mind transfer, but I had trouble believing an old man would be able to change his mind set without years and years of adjustment. The biggest problem I had with the story however was that it was so convenient that the old man's assistant was (avoiding spoiler) in the right place at the right time. A lot of convenient things occur in Heinlein books but that felt like someone won the lottery.
Other than that I thought it was a unique and enjoyable story. I don't know if I'll ever truly "not like" something Heinlein wrote.
