I received my PM-3 yesterday (as a birthday present).
After initial break-in (where it sounded very constraint, no highs, grainy) they are really shining now. I love the balanced and natural presentation of the music. I find the highs a bit too held back, same as many people have commented before. But I definitely don't find it a boring sounding headphone. It is just that you have to get used to the polite presentation. That takes a few hours of listening, but once you are used to the sound, they are really very good.
One thing though........ In the box I only found the 3m long cable. The shorter (1.2m) cable, suitable for traveling was missing. To those who recently purchased a PM-3, was it supplied with both cables?