I have had more better experiences than bad in this field the two that really stood out where and where exceptional to me are
Aesthetix and Basis audio
Vandersteen audio customer service has also been great.
Cary is ok when they actually work and pick up the phone they are helpful. But can't ever seem to say the right thing or fix the issues.
Kimber Kable these days would be better off not picking up the phone at all. Customer service is good until you need something fixed then it is a joke if they even fix it and not just charge you $$$.
Aesthetix and Basis audio
Vandersteen audio customer service has also been great.
Cary is ok when they actually work and pick up the phone they are helpful. But can't ever seem to say the right thing or fix the issues.
Kimber Kable these days would be better off not picking up the phone at all. Customer service is good until you need something fixed then it is a joke if they even fix it and not just charge you $$$.