Is the service easy to reach, waiting time, welcome quality, discovery of needs, customer guidance, advice given, compliance of the feedback provided...
Response rate and response time, customized feedback, politeness, spelling, compliance of the feedback provided, follow-up...
Availability of service, Response time, customized feedback, welcome quality, advice given, compliance of the feedback provided...
Welcoming and taking care of customers, diagnosis, cost estimate or valid warranty, compliance vs repair time and commitments, repair quality, no negative feedback, follow-up...