My experience with Amy at Hifiman customer service has been exceptional. They have helped me as much as a company can possibly help with my HE-1000 and HE-6, going out of their way to solve problems and assist me. I have no qualms in recommending or dealing with their customer service. I for one would love it if all companies treated me like Hifiman does. Just saw this thread so I felt the need to mention my experience with them. I have not yet run into warranty issues, so I'm not sure how those are dealt with.
Edited by Jozurr - 1/19/16 at 9:59am