Purplebricks, with its jaunty and colourful 'for sale' boards and up-front fixed fee payment model - avoiding all those irritating little payments of £28,000 on completion of your property sale - advertise themselves as 'A Complete Estate Agency Service'. They admit to a self-professed reputation for delivering a good quality service for its customers ... by combining the power of people and technology and eliminating the unnecessary costs associated with outdated high street estate agency. So far, so good.