I recently purchased a house through Downer and Co and found them very helpful. We mainly dealt with Fraser Crumlish and he regularly went above and beyond my expectations. Viewings were always booked for convenient times (evenings) and we were always kept up to date on any progress.
The purchase was slightly complicated by our mortgage position and the length of time it took to get mortgage offers raised, however Fraser ensured that communication between us and the vendor (a small local property development company) was always relayed immediately and chases were made as and when necessary.
I can whole heartedly recommend Downer and Fraser.