The problem is some of his technical tools are really questionable. His fractal theory to me is quite flawed
and the Alligator is too subjective and not usable at all on lower timeframes in my opinion.
Even the AO (his best indicator) is just a variation of MACD.

None of his books are true books about 'Chaos' theory either. They are merely books about trading.
He makes some conflicting statements as well....e.g 'Traditional technical analysis doesn't really work' and
then goes on to describe AO which is just MACD in disguise. Right on.

Having said all that I still quite like them for the trading psychology/philosophy side of things....