I am using gunbot and I am happy with results. Its not perfect, but bot doing what it supposed to do, so overall its good. You can read more about it in official gunbot thread.
Trading bot is one of the greatest revolution in the world and it has started helping number of traders in getting more profit but the thing is you cannot real entirely on the trading both. it is because of the reason that trading bot is unable to think like human as not does not have brain to think. You need to take assistance from trading bot but the final decision must be made by your own self.