Thought I'd chime in here with my own impressions. I purchased a Yggy direct from Schitt. Have had it for about two months now. I compared it directly to the Bryston BDA-3 and the OPPO HA-1. Of course I was also able to compare it to my Neko Audio D100 Mk2, and I have a few other bits of gear around but didn't do critical comparisons to them. I was using the HA-1 balanced out for amplification and Audeze LCD-X in all cases for these comparisons. USB was used for the HA-1, Yggy, and BDA-3. Optical was used for the D100. Transport was my iMac.
I found the Yggy's sound to be very clean, but also laid back or veiled. Like everything was kind of recessed. I'm surprised I haven't read this in the many reviews of the Yggy online. By comparison the OPPO HA-1's DAC (Sabre) was more dynamic and punchy, but I think a little less clean. The Bryston BDA-3 has both the dynamics and punch of the HA-1, and I also think it is slightly cleaner than the HA-1. I think the BDA-3 would sound even cleaner and more refined with a different output filter choice; using Dirac Live RCS helped bring out the absolute best with the BDA-3. None of these sound as natural and musical to me as my D100 DAC, like an analog setup, but the D100 is a bit long in the tooth now and these newer DACs have better transient response.