Trading with a bot is not always the best way to trade and bot do lose money more than human, base on my experience. If you have good skills in analyzing the market with success I will advise that you should do that instead of depending on bot or robot to trade for you. I have tried that several time but it seems it doesn't work well in trading.
Its really not the best way to trade, its just a tool to help out those who are not good in controlling their emotions and those day traders who wants to trade even when they are away. Disadvantage of using a bot is if you placed a wrong command or settings. I remember there was a time in Bittrex, i forgot what coin it was but there was someone who places a sell order below the current Sell price so the price of that coins keeps going down. I remember posting the screenshot here this forum and I suspect its triggered by a bot.