I gave one star because I don't think you can give zero. Sales rep came to our home & gave a good presentation. Then at the ending put on a pressure sales tactic to get us to decide immediately & sign up for their $5000 system. When we questioned this tactic & asked for a reasonable time to study, check references & decide in a normal manner she stormed out. We called the home office & asked what was up & were told a manager would get back with us. But they did not. Based on reviews we read later a& their sales tactics will definitely not buy their system. Suggest you check it out in advance before you invite them into your home.