From BJF Trading Group:
Forex Latency Arbitrage Software for MT4 accounts and FIX API Accounts.Latency arbitrage compares quotes from a slow broker with a fast feed, and opens orders only with the slow broker when an arbitrage situation arises. We provide a fast feed from several sources free of charge. You need only have an account with a slow broker. You can use the software for trading in MT4 accounts and FIX API accounts as well.
-Seller won't give you a broker list which he also uses
-No real account proofs. Most arb test took place in demo account
-Even if you find a good broker at demo, when you go live you will lose constantly
When you buy the software you are on your own. The seller will tell you 1-2 brokers for arbitrage but most likelly the will not work or have very few arb oportunities. Even if you find a broker suitable for arb, after a LONG testing time, when you go from demo to live to this broker, the broker will spot you and identify that you use arbitrage and will start requotes and different prices fill, so you will make continuous loss.
Believe me. I 've tried it and it's just waste of time and money