A good acid test for any piece of digital gear is piano. It is the hardest instrument to replicate. The Lampizator 7 is the best I have heard to date. Another L7 owner has a child who is an accomplished pianist, and he has the same impression through both headphones (of which he has many) and big boy audiophile grade speakers. Jafox said something similar regarding his L6. So, it is all about implementation and system building. The dac has no sound of its own.
Matt, I gave you a little guff about the car choice, but the new piano purchase for your bambino thrilled me. I cannot wait to do the same. Instead of comparing dacs to one another, hold them up to that candle one by one....