Well the week I've had with the PM-1's has been highly enjoyable. I love the sound signature of these cans, and pretty much everything about them. I can literally just listen to music for hours and get lost in how great they sound, with zero fatigue. That to me, is the mark of a great headphone. Build quality is the best I've ever seen, and they don't look ridiculous on my head, like Audeze cans. I plan on buying a pair, but first would like to hear the PM-2's.