I sold my flat via Smartmove. However, I am convinced it was more through luck than any of their skill. They only got us 2 viewings in several weeks, and luckily one of them bought it.
Throughout the process we had to chase them and chase them to get them to do anything. Even after we sold, all chasing and harrying to move the chain along was done either by ourselves, or the estate agents we were buying through (Palmer Snell). This experience with Palmer Snell has opened our eyes, made us realise that all estate agents are not the same!
In my opinion Smartmove are to be avoided.