I have not heard the MSB discrete DAC. But wait, i do have a point.... :-)
I have a 15 year old MSB Gold Full Nelson. I also got the pinouts for the power supply, and built my own, external, franken - supplies (totally independent analog and digital back to the wall plug (well, fuse), and both passive filtered and discrete custom regulated to a silly degree.
With upsampling enabled, driven by Macbook Pro from FLAC/ALAC and bitperfect (bitperfect is very, very good, alas itunes is very, very bad), the gold full nelso link DAC (Base price like $500 in the day) is astonishing for an old, relatively cheap device. very un-digital (non fatiguing, warm, easy to listen to), and yet dynamic, detailed and extended frequencies like digital should be. And this is through a very revealing system.
If Mark could do THAT with zero resources, 15 years ago, what can he do with $10k today? A lot i would assume.
So i’d bet its a great product.
G