I have been trading with the CX technology for a while now. I go through a White Label provider, since my account is not yet large enough for a Prime Broker. I have spoken with Goldman and FIMAT for Prime Broker services, but I need to raise some more money before I go that route. For now, my WL provider is doing a good job, with great service and a direct line to my rep who ALWAYS answers the phone within a couple of rings. I have had no service issues at all. The cost is reasonable, though I will be renegotiating that shortly, since my volume is picking up. I pay $50 per million. Since most cases I am at 1 pip (or less), I am OK with that fee. I could probably get a provider at $20 per million, but the minimum volume is not there yet and I don't want to push the envelope to get there.
Regarding the platform: I have used almost everything out there, and in my opinion CX is the only one (that I have used) that truly feels institutional. I have been trading since 1994 and Forex since 2003. I have definitely been robbed, but not on CX. I have spent the last year and a hlaf developing and researching automated strategies. It wasn't until I found CX that I felt comfortable with a scalping type strategy, which I am looking for/developing now.
During news events, sometimes the prices go crazy for a second or two, with huge spreads, but just from watching you can tell it is a result of banks/traders pulling back and adjusting prices. That is what I expect to happen if something is legit.
I hope to expand next year into more trading strategies, including adding futures/ETF's to the portfolio. I looked at Redi+ through Goldman, since it handles all asset classes, but I felt for currencies, CX is the best. Therefore, I am extremely pleased that Goldman is now a Prime Broker for CX. That way, you can use CX for FX, X-Trader for Futures, and Redi for Stocks/ETF's, all being cleared with back office ops at GS. Most of the 2nd tier PB's I have found, really want you to execute through them. That is, using their desk. That has obvious benefits. While it is nice for position building to get relationships and a feel for the market, I rarely need to pick up the phone and place an order.
Wow. Sorry. I really rambled on that one.
I would love to hear more experiences.