Yeah, I'm not a fan myself, I'd much rather have a Pu Dao. The video does showcase his shen-fa.
I think first teachers give first impressions and in my case it made me want to explore more and gave me a solid base to work from.
CMA has astounding diversity even ICMA which is tiny by comparison is still mind boggling in its depth and diversity.
I am grateful that I was set on my way, by this teacher. I am still learning and exploring...
Unfortunately I never learned his fan technique