I've just used it and I'm pretty impressed.
One thing I noticed - I normally deal over the phone - and the frequency of re-quotes is rarer than rocking horse sh1t.
Out of six deals I just placed - three were bounced. Two against me, one in my favour. Fortunately the one that went for me outweighed the others, financially.
I get the impression that the dealer on the phone is allowed more tolerance than the system....?
UTB