I never owned it, but as I was very interested in buying one of them few month ago I read quite a lot of reviews and customer feedback of this DAC. And finaly I had a chance to listen to it in my local audio shop. (With some NAD amp and Focal 714V loudspeakers)
If you want to know how it sound it quite neutral with very slight accentuation of highs and mediums.
Not über musical but quite enougth for me. It was my listen but the review I read (I am french speaking and there is quite a few of them in french) said barely the same thing.
As I am not a expert and had only 2 different DAC in my life so I can't say if it is good for the price. But apparently : very good. Indeed Advance acoustics a french/chinese brand is known for the very good value of their products
(If you want to know why I did not buy it in the end : It is because back then I was looking for a DAC AND amp for my TV/Hifi/gaming setup. And I discovered the Teac AH01 which had the two functions and is VERY compact (also because I found a barely used one for 250 euros)
Hope it helps. :)
Edited by Akorus - 11/23/13 at 7:55am