I can’t speak to the period when he was leading international spiritual communities. I started working with Robert a few years after his 5-Meo-DMT experience and aftermath as reported in Darkness Shining Wild (it was that book that first got me interested in his work). Subsequently I did numerous individual sessions, some group work, and a year-long practicum with him and his wife / therapeutic partner Diane Masters. This work had an enormous positive influence on my life.
My experience of him is as a therapist with integrity, compassion and insight. I would not use the term “narcissistic” or “psychopathic” to describe him. I derived great value from my work with him (which ended about a decade ago). I would say he has some degree of arrogance, though certainly not to an abusive extent, and like any human (including every therapist I’ve done work with) has some blind spots. That said, he was definitely the best therapist I’ve worked with and I would recommend him to anyone drawn to his work.
If anyone is drawn to his work but has concerns based on the accusations made against him, I would recommend they read Darkness Shining Wild, his brief statement Clarifying My Past, and make up their own mind. (Working with my friend Iyeshka Farmer, who was trained by Robert and is an accomplished therapist in her own right, would be another option.)
Also, I think he would make an excellent guest on Night Club; it would be very interesting to hear a conversation between Robert and @aholecek. Robert is a powerful lucid dreamer and also experienced a combo psychotic breakdown / spiritual breakthrough, which he was able to observe lucidly and describe in beautiful detail in Darkness Shining Wild.
By the way I interviewed Robert about lucid dreaming in 2006; anyone interested can read that here.