I like & prefer doing business with an "established" company. I called Preferred because I have been impressed by Rod's newspaper advice. As a former carpet store owner I found his "Ask the Experts" to be informative and truthful. I am pleased that my first completed whole house job was done by Rod- the expert and professional. I know that I got the best job his company offers and so I can judge the results against other providers I have employed to "see" the difference in cleaning techniques and service. Another benefit is an honest evaluation of the value of my carpet, the wear pattern problems and which areas will still clean up nicely vs. which areas should be considered for replacement.