I took classes from Master Cho in the late 1970's to early 1980's. I know -- it was a long time ago and I was just a teenager at the time. But, the year's have allowed me to put some perspective on the experience.
Master Cho has become somewhat of a legend in Tae Kwon Do. I still have some of the skills I learned from the classes so many year's ago. His classes were extremely regimented and at times mechanical. He teaches the basic, power kicks. They are repeated so many times they become natural along with foot sweeps and hand strikes that you many not get at other dojos. Also, there is no question you will get a tremendous workout. I was exhausted at the end of the class even though I was a teenager in great shape.
Now for the negative. Keep in mind that I am basing my review on how he taught over three decades ago. So, perhaps he has changed:
He ran his dojo like a military camp. Nothing he said or did could be challenged or disobeyed. No one is perfect. So, even he made mistakes sometimes (such as mistakenly believing that his students did not line up "in time".). But, his autocratic personality made it impossible for anyone to question his mistakes.
One incident still sticks out in my mind. I recall that one of his best students was a black (perhaps a brown?) belt who occasionally taught his classes. This student was excellent and a really nice guy. In fact, this student won a major tournament. Suddenly, the student stopped showing up for a few months. Then, he returned. When he returned, Cho kicked him out of his studio. A more "human" thing to do would be to ask why he stopped showing up. Did he fall ill? Was he in the hospital? Did someone die? Did he have to leave the state on a family emergency. There had to be a reason. So, I would say that Cho lacked empathy -- a quality that is, in my view, is more important than whether you can break flying bricks with your feet.
Here's another example: Whenever Cho (or another instructor/black belt) ordered you to do something, you had to loudly respond "yes, sir". The problem is that some of the instructors/black belts were female. You were not allowed to respond "yes ma'am" to them even if they preferred to be called "ma'am" not "sir". Some people viewed this as sexist.
Again, I am basing my review on the way he ran his dojo over 30 year's ago. Maybe he has evolved. I hope so. read more