It is an amazing DAC and not only for its price. I also have the old V2.0. Maybe the best available implementation of ES9023 with the 0.5 ppm TCXO. I am using it with an Allo Kali I2S reclocker and separated power supply for RPi, Allo Kali and I-Sabre DAC.
It is not so well known, but the ES9023 is able to run at 32bit/192kHz with miraculous sound. The moOde player with its custom kernel can feed the ES9023 with 32bit I2S data, however the libsoxr up-sampler library runs only on 28 bit internally by default in case of the Very High quality settings. High quality means only 20 bit. Unfortunately MPD doesn't allow so much configuration options for libsoxr. To overcome on this issue, you should download the latest source code of libsoxr. Change only one line in the code to allow libsoxr to run on 32 bit internally in case of Very High quality settings. Then you should compile it and replace the existing libsoxr in moOde player. The difference is really well audible.