I personally have not used the robots so there is not much i can say about them other than saying that robots are going to be having some issues based on what you do with them. You should be familiar with the way forex works and once you know that then you would do much better with it.
I have not been able also to make use of robots but I can say that it makes trading more efficient according to those who have been making use of it, but it is not that which all traders are to make us of. I also think that it should be mainly for the longterm traders who are also expert and will not be having all that time to trade manually.