Found them very rude. They advised that as I had not sold through them I was not able to even look at a house they had on the market. I felt they went out of there way to sell it to one of their own home sellers. It then all went wrong and they came back to me and asked if I was still interested. It has actually put me off ever selling through them. I did buy the house and I told the owner what had happened. They were suprised as they hadn't been told that this was how this agent worked.
My advise to any one is: if you want an agent that will give you every chance possable to sell your house, don't use Sparks Ellison!