Do not rely on auto trading bot, they are not that much genius which you are, you can trade more better than bots and can earn better than them.
This answer is just too simplified, bots can do better trades than humans in some cases, as they are not driven by emotions like us.
All depends on the way the bot is programmed and the way you set up the parameters.
You should definitely know how to configure your bot according to the current market before you actually use it with a lot of funds.