It has tons and tons of connections, great interface, has an amazing pedigree... but I really can't tell much, if any, difference in SQ between it and my Xonar Essence One. I use the same coax connection from my Xonar card in my PC, connect to my SLI-80 F1 w/ HE-6s, and... I'm not hearing it. Same goes for my SRM-717/O2 setup, they sound pretty much the same. The Essence may be very slightly more analytical, but that's it.
I'd like to get it, I'm a big fan of their vintage gear, but if it makes no difference I'd rather just keep the cash. What am I missing?