Doris works 7 days a week, with a late start on the weekend. As I hate vacuuming she is the perfect addition to our home. The keepout zones are awesome for those cable happy areas. We get a lot of pet hair, dust and general dirt up here and she does great at adapting to the changing landscape. Mavis is our earlier bot (4 years) and she just works downstairs on a much simpler area. Solid, steady and well she's good but not great anymore.