If you made up your mind to buy a trading robot, you need to realise its strong and weak points. Unfortunately, it is next to impossible to create a robot which will be successful in all economic situations on the market. For example, some of the robots are good during a strong trend, while others are good during the flat market. If you use the robot in the situation which is not suitable for the trading strategy which lies behind the logic of operation of the robot, then you are highly likely to lose lots of money.