I own the 80Ohm model, do note that the 250Ohm model should sound very different. Looks: You'll look like you're working for the sound crew of a broadcast company. Construction: Solid materials used through out. Some weak points where the headphone and cups meet. Here's the kicker, though: All parts including the head band, driver and cable can be ordered as spare parts. Potentially this will be the only phone in your collection that you'll own for the rest of your life.  Comfort: Not THE most comfortable I ever wore but I can have them on...