I am curious what you expects customer service to be?
I've worked several different retail and technical support service jobs over the years, and still occasionally interface with the customers and end users of my current employer's customers.
Some things that have worked for me in those positions:
1.) _Always_ return a call or a request for help, even if the answer is going to be no, customer may just need a shoulder to cry on.
2.) (This is the hardest part) Always maintain civility and professionalism, kindness, especially when the answer is going to be no or requester is being unreasonable or belligerent.
3.) If the answer is no, attempt to provide a listing for an alternative service provider.
Are you happy with phone support only as customer service?
I think that this forum will skew the answer here as most of us have no problems getting our hands
dirty, for me having a provider be willing to do phone support as part of the package, even if i have to pay for the phone time is a really great selling point.
But most of my life i have lived in very rural areas, so this taints my perspective as well. For example, a couple of years after our new boiler was installed the circulator pump motor blew out one evening, The plumber that had done the install was working in the next county over and an immediate service call would have been at 1am and about $300+ with travel time, He talked me through replacing the motor, called the local plumbing supply store to have the right pump ready. Then later that week, when he was back in town he came and did a service call to make sure things were O.K. when he didn't have to charge me $200 in travel time, and just the normal service charge. My kids stayed warm and he earned my eternal loyalty for any future plumbing/heating work.
Do you expect customer service with support at your home?
For most situations yes, and again, given my life experiences, I am willing to pay extra to have the job done right.