On an older system already installed, Paul calls ahead, shows up on time, looks professional, does his tune up thing, explains any issues with pictures, gives it an overall life expectancy, provides an additional deep clean on the core thing I requested, and cleans up completely. No swearing, or loud music, no mansplaining, no sales pitch for more stuff. He gives me care tips and how to use different features. How to prevent damage like rust, and he explains everything right down to the signatures. Thank you Paul!