Everyone keep in mind that this is a programmers demo piece!
It uses one indicator, which although a good one for manual trading, should not be used in isolation.
Main issues with any ZigZag (or the similar Fractal) variant are lag and losing the plot in tight ranges or rapid trend starts/reversals.
With no StopLoss or TakeProfit, this EA can make good profit for a while, then trash your account in a couple of days
With any sort of SL & TP set, there is very limited profit in spite of the win %
All this points to the indicator having great potential but should not be used on its own!
My 2c worth
-BB-