ADAU1452-based "BEAYEAU" M26DSP from China, not cheap - any good?

[Argentum 05]

Hello everyone!
How is it controlled? What is the interface like—is it only via SigmaStudio?
If anyone uses one, could you please tell me about the sound quality?
I messaged the seller on AliExpress, but they couldn't give a clear answer. They also wouldn't send the project files.

 

[Argentum 05]

I can share measurements of my own device when it arrives, looks like it will be about a month from now.

Did you receive your DSP? If so, please share your impressions.