These wonderful gentlemen were on time, parked in the street, wore booties in my house and cleaned up after themselves. I kept asking questions, "What is that? What it is for? What does it do?" And they answered every. single. one. When my husband popped in and asked the same questions, they didn't even roll their eyes -- they just politely answered them all over again. No pressured sales techniques -- just questions about my needs and choices I have for solutions.