Took 3 weeks to get a service appointment on their project, installed by them. Then I received a call 2 working days before the appointment telling me the appointment needed to be changed to the following day to facilitate their scheduling. I said that I could not be home that day until 3:30 and a 3:30 appt. was confirmed. I arrived home 45 minutes early and found the technician waiting for me. He had been given a 1-3 pm time slot. Inconvenient and inefficient for everyone.