He writes a column bi weekly for tradingmarkets.com , I find the column to be very vague in terms of his actual strategy however his insight is very valuable. He usually writes about things like losing streaks, the psychology of trading you know the basic sorts of things.
I have no idea how good of trader he is but I would assume from his writings that he knows what he is talking about, I also believe that he has been around the business for a while now.
It is probably a good thing he is so vague because most of his strategies would not apply to most traders as he is a floor trader.