As far as I know, Iress View point is the same on all platforms. About two months ago, there was a serious problem where my trade was stuck on my platform. (showed up on manage orders but I was unable to cancel or adjust the price) The broker was puzzled, said he can't see it on Iress but was on their site) Took some time for him to contact Iress and get them to cancel the order.
I gave up on Iress a long time ago, not because it wasn't reliable. It simply didn't suit me any longer. Live data, flashes and changes too quickly for me to gather anything for records. Very handy for see it live though, but the more I see the more confused I became, so gave it away. Good luck, Smurf