Best and Worst customer service?

My vote goes for Sonic Frontiers, as Best! I was contacted within an hours, after e-mailing a question. Wery friendly and helpfull!(they can count me-in on the next purchase) Thw Worst? Linn audio! It's been over a month since i submited a Q! I am stll e-mailing the question...i am sort of amused by now!
Thiel is excellent. I blew a tweeter in my 3.6s that was absolutely my fault. They replaced it free. Worst is Goldmund. They can only be contacted by e-mail, and it takes about two to three weeksfor them to respond. I had a problem with my SRMs. A distributor sent it back for me, which saved me hundreds in overseas shipping, but it took over three months to get them back. I would hesitate to buy anything foreign made without good US representation again. I also had a pronblem with KR amps. It cost me about a Grand for shipping to and from. At least they answer their e-mail promptly.
Best: Sonic Frontiers. Excellant, prompt service by e-mail. Very happy with service.
Cardas has great customer service. I emailed George Cardas when I had a problem....the response to my email was received within hours. To make a long story short, he replaced my cables with ones that were 1/2 meter longer, at no charge. . His Neutral Reference cables are great-sounding ! VPI is also very good for customer service. As well, I like their philosophy that just about everything they make is upgradeable as funds become available.
The Best customer service I've experienced in the last year is with a small company BMI Virtue Power Cords. The owner designer, Brian Introcaso worked with all the custom situations for upgrading my power cords. He spent ample time in answering all my questions and designing my Eel power cords to work in my system. Very happy and pleased.