Received mine today.
Haven't had much time to listen yet but so far it's looking good. Off hand I can say it is very quiet (as expected), good detail, good instrument separation and good bass punch without being sluggish. It's not cold but not as warm as I was expecting either - quite neutral.
My speaker system leans a bit bright towards the bright side to begin with and I do find it somewhat more forgiving on classical violin when compared to my modded EE Minimax. A step in the right direction as far as that's concerned but I'll still be looking to change my amp or speakers somewhere down the line to add a touch more warmth. I definitely like it more than the Rega DAC which I tried a few weeks ago. I found the Rega had no "snap" when compared to the EE. Definitely not a problem for the Ciunas.
For what it's worth - I currently have it hooked it up to a SB Touch/EDO using an inexpensive 6" Belkin Pro cable. It does 24/192 decoded at the server without any problems.
I'm temporarily without a decent HP amp so for the rest I'll need to do some more extensive listening at higher volume tomorrow when nobody's in bed. So far I'd say it's a keeper but I'm not sure I'll be selling my modded EE just yet...