What can you all tell me about Derrel Sims?

Hey folks.

I've read a lot of stuff about Derrel Sims on the internet. What can everyone tell me about the guy? I know he has this Alien Hunter persona, and what not, as well as he does all this hypnotic regression stuff to help people remember their alien abductions.

What can everyone else tell me about the guy as a person, or as a guy in the field of UFOlogy?

I await your answers to my benign questions.