The NFB's DAC chip is superior. Not only that, it has a powerful amp too.
The closest comparable product from Schiit would be the USB Bifrost $449, and Asgard $249 combo.
So for $333, the NFB provides better sound and an amp, compared to $700.
There just isn't any other product out that can power an HE-500, has an ESS9018, and does 32bit 384k, under $350.