I've made my own EA when I was first curious about forex trading and the thing is that it actually works. Not big profits though and drawdowns can last for quite for some time but it doesn't lose. EAs have many benefits that manual trading lacks. It's discipline, precision, EA is always there but you need to sleep. It frees your time so you could work somewhere else. As of profits, EAs bring a little less profits than you can do by trading charts but it's still much more than you could make by making other investments. I love these robots!