I love mine. Replaced my Gustard X16 with it.The A20d 2020 might be the crème de la crème of what a ES9038Pro can do paired with a good headphone amplifier, and at 377$ on 10% sales it's a bargain.
The competition is getting tighter, attention to detail is what will put one company over the other, things like more DAC features controllable in the UI, nice looking and user friendly UI, accurate Manual, firmware updates, longevity of support.
We shall see.
Works as well or better for a much lower price, with an amp included.