He sounds pretty amazing. I started listening at the point where he is talking about the flea, up to the point where he starts talking about the training he offers. After a bit, it is obvious he wasn't born here, but I would say he sounds (and "acts") 99% western ... just a slight accent.

He also makes the odd error. For example: "people are like sheeps"
(something like that). The plural of "sheep" is "sheep". Also, "don't
threw rocks at me" was in the past tense (should be "throw"). Also, he
says "pronounciation" several times like "pronounce - iation". (should be
like "pronUnce - iation").

Another observation: The way he talks, presents himself, his gestures,
etc he seems more fairly out-going and self-confident, almost like he is
"acting" western (compared to chinese ... more conservative, modest).
Maybe that has something to do with the training he is selling i.e. part of
learning english is believing/acting like you can (unlike the flea).