Summary: I travelled to/fro work with these headphones, but the flimsy cord wasn't built for the movement and the connection by the jack became compromised causing intermittent delivery of audio. Sennheiser promptly replaced these with HD429's. Again the same thing happened.
Summary: I can't recommend a replacement brand just yet, but for my atleast I am not going to throw anymore money at Sennheiser equipment as it is definitely no longer remotely close to professional grade.
Pros: Still has class Sennheiser sound.
Cons: I have been a customer of Sennheiser's headphones for close to a decade, I originally owned a pair of HD 428's that lasted 3 years. Now in the last 4 months I've gone through a new 428 and now a 429 that both have deteriorated disturbingly quickly as the wire fails somewhere just past the jack.
Summary: Bought these as a replacement to the highly disappointing Beat Solo's which I took back twice due to the cable breaking both times. These headphones are so cheaply made the plastic is flimsy and the joints look like they could break at any time.