Dave from MD's came right over when I called about 8 p.m. because my A/C wasn't cooling down my house. He immediately identified the problem (low coolant), and solved it without trying to upsell me or waste any time. He was polite, friendly, and professional. I was so pleased that when he did mention MD's maintenance/inspection program, I signed up because the price is perfect if it continues to come with such great service.
I definitely recommend MD's if you are looking for a smaller but reliable cooling and heating business.