Lissy and Iscreaminchoc, Standi' up for me beatches, innt! 
Lissy, my take on ARGC? What do you mean specifically? They're sort of viewed often as Last Chance Saloon as they're so expensive and can be rather intensive - they expect you to be there every single day including Sundays right through stims, and then also fight like mad for you if there's any problems once you've got a BFP. My view in summary is that they get women pregnant and keep them that way.
Almost all of the women I met there had had treatment somewhere else first, or had had several mcs and most of the histories were worse than mine. But their success rates are extraordinarily high, even with the patient group they're treating.
They don't pull any punches. I remember calling when we discovered my progesterone levels were poor, and asked about progesterone supplements. I got a call back that said "Doctor says to ask you if you want your progesterone raising, or want a baby." 
I started IVF that week and 9 months later delivered my son. Without a swift kick up the bum like that, I might have soldiered on 'trying'.
They are also very paternal - they don't overload you with information - they just expect you to do as you're told and they do the rest. They took calls from me at all hours, never made me feel anything but cared for, and monitored me to within an inch of my life.
A lovely friend of mine has recently had embryo transfer there, of 2 good embryos. It's looking like one of them might have ended up ectopic and she's bled and been in pain. Most other clinics would have sent her home for 'nature to take its course.' ARGC have had her in for further monitoring, put her on steroids, measured her progesterone and decided it was a bit low and pumped her full of it, and put her on clexane and aspirin. They've fought so hard for her, and yesterday she saw a heartbeat at 7+1. I have no doubt that wouldn't have happened anywhere else.
Does that help? x