Yalom is a pretty smart guy and very well respected amongst psychologists, and his writing is often highly cited. But I don't think he is a sensitive person. At least not in his books. He comes across as distant, haughty. It's not in every book or every chapter, but it happens enough times that it has alienated some people. If you are not sensitive enough to be bothered by that, I think his books are quite insightful. I'm pretty sensitive so it bothered me the couple of books of his I was trying to read.

Edit: This is one book review, for instance, I came across and I think it captures some of these things I have been referring to:

"This is not the book to read while you are actually in therapy. Although I think Love's Executioner was meant to show people the "behind the scenes" of psychology, Dr. yalom will make you question the motives of any practitioner, no matter how saintly. That's not to say that the book isn't intriguing, informative, or balanced; it is all of those things. It's just that Yalom comes across as unbearably arrogant in many of the case studies, which belies the work he's trying to do. According to him, he hides his feelings well, to which I say, I hope so, because if I knew a therapist was looking at me with the same sort of misogyny, boredom, and disgust, I'd certainly never be back."