Actually, from what I have been told, there aren't that many schools there that appear to have a very good reputation... His background is in Shotokan, and his orientation is very "traditional," in the sense that he doesn't want to study in a crap school... His knees are bad, so he is hoping that the slower, lower impact movements of Taiji will allow him to continue practicing while preserving (and maybe even rehabilitating) what is left of his knees...