The name matryoshka is not chosen by chance. The EA uses several strategies one in addition to the other. One strategy works on signals of weekly ATR, another on daily ATR, the third on hourly ATR. Each strategy complements and balances the other, which makes the EA stable in the flats and allows you to earn in the trend. The system is not scalping and can be in drawdown on profit from several hours to several days or weeks.  Therefore, before buying this strategy, decide for yourself what type of investors you belong to.