I think Peter flies in a plane most of us cannot afford.
Having flown twice with him I would say that he strikes me as very competent indeed. He is one of those people who, when they set about doing something, make it their business to acquire as much knowledge of the subject as they possibly can. That is apparent from the articles on his site, though some are too technical even for me! We are actually poles apart in our flying: fast tourer which likes runway vs old tail dragger on short grass strip!!
Were I to win the lottery this weekend and have a few mil to spare he is certainly one of the people I would talk to at length about my purchase of a good touring aircraft and the process of acquiring the skills to fly it competently.