I use it together with iFis dual USB cable and iFis purifier, which then plugged in to M2Tech Young DSD. Might be an overkill, but for the price that this setup gives its very good value.
 
Tested my setup without the iUSB, and indeed could hear the result, very interesting product.
 
Our PCs/Macs are very dirty in power outputs, due to fans etc etc. This this is very good in eliminating those.

Total recommend. 

P.S. In my previous version of the review I wrote that I power iUSD from Van Der Graaf from MT2tech - do not do this, as it is not correct to do this, just use standard AC adapter that comes with iUSB.

It short its a great product.
 
Photos of setup:
 
http://i.imgur.com/qdqCB55.jpg
 
and
 
http://i.imgur.com/qrLbqhl.jpg
 
I own it together with Van der Graaf power supply and use it as both DAC and Preamp hooked up directly to amp (Dantax, bypassing its integrated Pre).

After the burn in period it become not only good but amazing. Most definitely a  recommend, especially considering its pricing.

My only concern is volume fob, it could have been better - but its easy to get used to it and you have a remote.
 
P.S. If using with Van der Graaf - make sure that you have correct voltage settings on Graaf for Young - its extremely important (!).

Just did a new install - and it sounds just so much better than internal DAC.
I did my purchase based on a reviews and company in general.
 
Very good build and probably best in-expensive DAC out there.

PS. My USB cable is coming, probably will be better than the one I plugged it with now.