Yes, yes, yes, please yes!
I love my Lampizator Amber II but it requires a USB-SPDIF converter because its USB input is mediocre (to say the least). The newer Lampis probably don't but they're unaffordable. I'd love to simplify my main rig with a Schiit DAC for its reliability, form factor, customer service and American manufacture. I know from throwing my Bifrost Unison Multibit into the main rig that Unison is superior to my USB converter but the small scaled images and soundstage, dryness, lack of bloom and tonal richness in that setup make me hesitant to try a Yggdrasil.
I'd purchase a tube output Yggdrasil in an instant. (I've had several other tubed DACs and CD players over the years).