I'm considering joining a Hapkido dojang in Hamilton, Ontario, Canada: it's called Hwa Wan Yue Hapkido Martial Arts Academy. Has anyone heard of it before? Is it legitimate? The academy instructor is Grand Master Don Cha. Has anyone heard of him/been taught by him before?

I studied martial arts years ago, and while I'm anxious to return to them, I'm really concerned about choosing the right place. I would really appreciate any help anyone can offer.

Thanks kindly for taking time to help me out.