The work itself was completed on time and in a professional manner.
But regarding customer service -
1 - I responded via e-mail to schedule an appointment, but had to trace after a week of no response
2 - we received no invoice at the appointment, because the technician didn't know what the charge would be. he said we'd get an invoice in the mail. that never happened and I had to call in to request an invoice. no one called me back. I simply got an email invoice with no explanation of why we never got one or a thank you for following up.