Shawn,
Welcome.
If it is the school I am thinking of, you have found one of the best. I believe they are the senior most Wu players in North America. I tried to visit a couple of years ago on a quick trip to Toronto, but they were closed (EVERY **** thing is closed on Sunday in Toronto!!!!).
My first Mantis teacher touched hands with these guys before, and he was left in awe by the teachers (sorry can't remember names right now) ability to manhandle him. He said he has seen very few people before, and since that had the abilities the Wu family had up there.
This all being said, go check them out and go with your gut instinct!
As for more details about Wu....many other much more qualified to answer that! I do know this, it is one of the most brutally effective Taiji styles I have seen. I like is better than Chen or Yang, but still prefer Sun. Sun and Wu are very similar though.
Cheers
Jake