As a realtor I hear horror stories from elderly people who were ripped off by them. One paid over $8k for a cheap 2-ton unit replacement, and another was sold an 8 year lease on her new air conditioner with the installments adding up to $23,000.00 They tried to rip me off too by lying to me about my warranty, but I caught them in the lie by calling my on warranty myself. User's recommendation: Don't let them trick you!