I visited his website once (I recall that he is a guy who lost a lot in the past, and then recovered after realizing that he needs to write things to understand himself). He also compares options to fruit (which is a decent comparaison, but there are far better).
My overall impression was that he probably makes some money, but I did not feel he is the best. If you want to learn, learn from the top notch.
Who ever you take ask some questions. Here are exemples:
1. Ask if he covers conversions, reversals, jelly rolls, boxes, etc.
2. If he says yes to point 1, ask him if you should buy or
sell a boxes, and why.
3. How to play earnings.
4. Is there a way to make money in which you do not lose at all,
but still can make money (If his answer is no risk=no reward, that means the guys is not an expert. I know otherwise).
5. Which of this is better: writing puts naked or selling covered calls (you should probably start with question, as it is an easy one).
6. What is the difference between a strangle and a gut's strangle, and why does it matter.
7. I want to place a calendar spread which is at the money.
Should I do it with puts or calls (answer it does not matter in total absolute money you make, but the puts lead to higher rate of returns). If he knows the answer, ask if this is true if dividends are higher that interest rates (answer: calls are better). He should articulate the answer.
8. Does he make money himself. How much of his portfolio is positive theta and how much is negative theta, and how each component did ove the least sell off. The best options trader should do well on both portion of their portfolion because they know how to trade stocks (direction), and also know how to trade options for income (the sell side).
I can give you the answers to all the above, but quiz him first.
Report the answers, and then we can talk further.
PM me if you have questions.