Duck & Hedges managed to move in two new tenants a WEEK before my flatmate and I were due to move out... Cue coming back from a day out with two strange men standing in the living room and all of our belongings piled up in one of the bedrooms.
This was the straw that broke a mangy camel of tenancy disasters. While our property wasn't 'managed' by D&H, the tenancy procedures (both beginning and end) were painful beyond belief.
The astonishing incompetence wasn't quite as hard to swallow as the rudeness that accompanied it. When showing around prospective tenants, the agents would barge in unannounced. They also lost their key and hounded us with calls throughout the day to demand we be in when it suited their house viewings.