I have had the Soloist 3XP for about 16 days. It clearly has a lot more power than what I need but I like the balanced, single ended, and headset jack outputs in the front. I currently only use it for headphones. In terms of audio quality, I have not done an in depth comparison to my all in one K9 pro ESS as I was waiting to ensure the Soloist has many hours of use to “break in”. I will definitely do so before the 30 days expire but so far I like it and am enjoying it. I wish it was more affordable but I did get a good deal from my local dealer. I also quite like the aesthetics. The volume knob could be a bit easier to increase or decrease as it takes many, many turns to go up or down in volume. I understand that is the design of it but that would be the only complaint.