Pros: Smooth, powerful, great soundstage, reliable, great connections, USB rocks!
I've was going to get the D100 from all the great reviews that it got around here but as I was about to buy I found out about the mkII so waited and got it as soon as it was released. I don't regret it for a second! It wiped the floor with the CEntrance DACport I had previously and disliked because of the terrible bass but this thing has a really weighty low end without sacrificing detail. I have heard a better sound from one machine but it was a slight improvement and it was twice the price! (M-DAC)