This information is very accurate, except for one detail. The person who came to me told me they were starting a new business in town for carpet cleaning and wanted to clean our carpets for free so we could get the word out to our friends.
They also said it would only take 45 minutes. I said no, it wasnt a good time (they wanted in right that minute) so they came back a few days later. I agreed, and they came, dropped their guy off and he proceeded to do a 2 1/2 hour demonstration.
NOT WHAT THEY TOLD ME.
I am mad that they lied to me. They were very, very hard to get rid of, but we were insistant and they finally left.