Well, when someone tells you that an EA uses Martingale as a management strategy, what does it tell you? It means you still have to use common sense. Martingale needs pullbacks of at least 30-50% (depends on the logic) to be effective. So will you attach this to a strong trending market? Of course not! Martingale works best on range bound markets which happens about 80% of the time. It is mildly successful with slow trending markets but it will wipe you out when the trend gets very strong. So how do you become successful trading Martingales? Look for range bound market with enough volatility that it will pull back 30-50%.
How can you tell if market is range bound or trending? Look at higher timeframes! If you are still not sure, put in a range indicator like Bollinger band. If outside the band, it is trending!