Had my preventative maintenance on my furnace completed. My appt was scheduled for between 9a and 11a. I received a call shortly before 11a to let me know the technician was running late due to a previous job and that he would be at my house within an hour. He showed up as promised and everything went smoothly. I have a 1 year PMA with them so I will use them in the spring for the preventative maintenance on my AC.