I am not using them. I see they are an MT4 dealer that deals with traders from the USA and offers 200:1 with 1000 unit trades. http://www.aaafx.com/Index.aspx ES
Many of the zulu trade users are using AAAFX, The reason I see is the lowest slippage as compared to other brokers. So they are actually good for auto trading services.
Am a signal provider in the zulutrade and am using this broker for providing the signal apart from this i have no other experience, seems like there is no problem with them.