Okay, this is for someone who has taken his class. I certainly do not appreciate what Cory did and do not support it. But, is he a good instructor?
I know you specified, someone that has taken his class, sorry I just could not resit putting in my 2 cents.
I can only speak for myself as an old codger. The short answer is yes. I learned a few things from him just from his youtube videos. I don't know personally how great a trainer he is in general as I have never taken a class from him. But like I said, this old dog still learned something from him. I wouldn't hesitate to take a class from him. Training is the second most important thing about carrying a firearm. The first being a mindset or understanding of the use of deadly force ( one could argue the two go hand in hand ).