Hi, I'm from Singapore.
I have just upgraded my Node 2021 with the PD Creative board and bought a BRZHIFI LPS for it. I mostly only use Node's streamer with the Ares2 DAC.
The mod brings the Node to a new level. Even with only the digital section, there is better clarity, imaging and quietness to the background. And also tighter bass. But the sound does get a little less warm. I'm sure there would more significant improvements on the Node's DAC section.
Overall I'm happy with the mod, and would recommend it to all Node owners.