I got to try these at Yodobashi when I was in Japan.
I don't know what Audio Technica did to these headphones, but they seem to add some sort of surround sound that really separates the instruments on certain tracks. Really stood out and I tried out all the summit-fi headphones for the most part while I was there. Bass is a little light, but might need a proper seal on your head.
I have tons of interest in these after owning the ATH-A2000z’s. I thought the A2000z’s where the best Audio Technica headphone I heard. I going to sell them and pre-order AP2000TI’s, which sound better in every way including fit.