We tried to sell our property through Miles and Barr last year. Huge waste of time.
The person we were dealing with never contacted us to let us know what was happening, and never gave us feedback from our viewings. Things were very slow for months, and they never suggested we lower our asking price (which we were more than willing to do as we told them we wanted a quick sale). They just ignored us completely - I think they even forgot we were on their books. The person we were dealing with then left and we were passed onto someone else who was just as incompetent. We were promised regular updates and feedback when we signed up with them and it never materialised. We came back from holiday to find 2 voicemail messages asking us to show people around (despite telling 3 separate people exactly when we were on holiday and leaving the keys with them).
We moved to another agent and got 2 different offers within a few weeks. Miles and Barr wasted almost 3 months of our time, but because we were new to selling, we didn't realise quite how bad the service was. Dreadful.....