If you don't know about this great upsampling DAC, read the many reviews about it. I can tell you that the reviews are spot on. After I put this in between my CDP and integrated amp, I noticed more details, more clarity, more "air" and separation between vocals and instruments with my CD collection. It also brought more warmth and musicality to my system.
It's small and I think (because of it's design) very easy to insert without taking up valuable real estate on the audio rack.
Anyways, I can't say enough good things about it. I can provide high res. digital pictures for those who are interested.
It's in perfect condition (see my perfect feedback on Audiogon - vman71).