This is the only DAC I’ve owned or heard in my system so no expert opinion here.
I also have a BS Node and added a Black Ice Tube DAC for $800 and it is pretty impressive. The stock tubes were replaced immediately with expensive NOS Mullard’s but I just tried some much cheaper NOS GE’s that I had in an amp I no longer use and I may just prefer them.
I believe they offer a trial period.
You’ll need a decent USB cable to do it justice.
Note I also upgraded the Node with the LHY LPS for $300 which helped.
It sounds amazing for the money compared to my analogue rig at 5x the cost.