I've always wanted one of these, but couldn't justify it until recently. I've been disappointed with more than a few expensive purchases in the past, but not this time. The PS-1000e is very different from the AKG K812, Beyer T1, and Sennheiser HD800 headphones that I've owned, physically and sonically, so rather than try to summarize here what's in the review (too complicated), I'll just point to the full review below.
Grado PS-1000e Audiophile Stereo Headphone review