Like the other reviewer, I too bought a coupon off on Group-on. Scheduled an appointment, they were there on time. But that's where everything went wrong. I to felt 'strong-armed' into purchasing the sanitizing package, and even had to pay for extra vents. They didn't wear booties, they just put a bunch of mats around. No one spoke english, I am 99.9% sure one tech was drunk, as he fell down my basement stairs. There were holes left in my ductwork afterwards, that I had to plug myself. The tech also left his drill behind?!? I highly recommend you stay away from this company, don't understand how they are still in business.