I sent my DT 770 (80 Ohm) to their Bangalore office to replace one of the ear pads under warranty. The inner lining had separated, exposing the foam inside. I couriered it to them and got it back with new pads in 3 days. While shipping it back, they packed it better than I had when sending it to them. Also, I did not have to call them at all. They replied quickly to my emails. I'm happy with my experience with them.