Huge waste of time - sloppy company

Contacted Stonehouse via their on-line form regarding renting out my flat.. At least a 3 day wait for a response. Thought I''d booked the first morning appointment for 10:30am. Nobody had shown by 10:40. I phoned their office. The person who answered the phone had the worst diction and could only tell me the agent was on the phone. Then I was told he was stuck in traffic. Two agents turned up after 11am. One was dressed liked he was on this way to do a bit of DIY. I asked them why they couldn't have phoned to let me know they were running late and by how much. They seemed reasonably informed about the rental market and I thought in spite of the lack of professionalism, I shouldn't rule them out. However, 9 days after their visit they still haven't emailed a market appraisal. .