I never believe in any trading bots, just try them for fun. Who know they have malware or can make your balance dry in a night ?
Trading bots is an interesting idea but I dont think so that they can be as much beneficial and helpful to any of the trader who wants to invest his money and start trading just because of the bots. It is because of the reason that the trading bots are not like humans and that they cannot think like the way humans do. Moreover, you cannot expect the bots to make the right decision all the time and you cannot rely on it.