I've been aggressively testing several brokers for a high frequency scalping EA i developed, after three months of really abusing the brokers with this agressive robot, Yadix has come out on top for the:
Best execution - stable and consistant
Fastest execution - under 1 millisecond with forex VPS - 2.5 millisecond with no forex VPS
Accurate fills - low level slippage (news avoided)
Profit withdrawals - all withdrawals executed less than 24 hes - ususally 1-2 hours
Support - transparent and fast
Spreads and conditions - low stp spreads, good conditions for scalpers
I hope you find this review valuable
Charles