I think that he has some good techniques, I just wish that people would realize that the things he does are NOT things to be trying out at home.
These are things that should be done ONLY by a pro.
But that’s just my opinion. I guess that kind of goes back to that old joke about dog trainers:
The only thing two trainers can agree on is that a third trainer is wrong.
I do not think much of him. I think he has great personality for TV but I do NOT think much of him as a trainer. Many people forget that it is just a show with LOTS of editing and he does NOT perform miracles. Some of his methods are outdated, cruel and dangerous, he has had some problems because of some of his methods and is even being sued.
Also, I do not see the point of showing these types of corrective measures on a TV show if they can not be used in real life by ordinary people. Most people watch the show to learn how to fix their dogs problem’s, not just for entertainment and the chances of him ever coming to help the ordinary person are slim to none.
You may think alpha rolls are great but I hope you realize if you try alpha roll a very aggressive dog you can really get hurt.

