Yeah, I was pretty disappointed.
Called a few local outfits. Left a couple of messages, the third got someone. The business manager put a tech on the call, we talked through the problem, he diagnosed as likely an inverter replacement.
An hour later we had an agreement drafted up, they're coming Wednesday (assuming tomorrow delivery of new to them tomorrow) to do the work.
As opposed to Sunrun, who called back after the above post saying that "Oh, yours is a purchased system. We'll have to charge a fee to come out and look." Well, yes, mine was purchased. Why wasn't that noticed when we were on the phone initially?
OK, an oversight. A service call charge is understandable. Sunrun wanted to schedule someone to come out to diagnose the problem so that we can then schedule
another call to do the actual work--which likely means weeks, guessing by the interactions so far.
When Sunrun sent me the email to approve the charge, I'd talked to new, effective people. So, I responded to Sunrun that I'd found a local provider who's interested in providing decent customer service, and they were fired.
If your buddy is still looking, I'm going with
Complete Energy Solutions, which is in Arvada (Denver suburbs, towards Boulder). Can't speak to their technical skills at this point (obviously), but they seem committed to service.