I bought my Yggdrasil A2/Unison as a pre-owned at a really great price. It is silver. I can live with the silver, but if I had a choice I'd prefer the black. A couple months or so back I emailed Schiit asking if I could buy a new cover, even offered to send my old cover back and not looking for any discounts. They declined stating all covers were spoken for and not for individual sale so I put the thought to rest, until I read about the Yggdrasil+ ...
For myself this is appears to be a great opportunity to get a colorway that I prefer, and also a slimmer & streamlined chassis to boot, sweet! I don't hate the big ole Yggy, but it is disproportionate to a lot of the other gear I have. The real bonus for myself is that I'd get a refresh and once over and also 2yrs warranty where now I have none. Added bonus's would be the remote and also I guess the NOS feature, but from what I've read about NOS in the new BF2 it's probably not something I’ll use personally, but who knows? The other advantage is perhaps with the new chassis design you’d have compatibility with other modular upgrades, although that was a selling point in the OG so that may just be marketing.
In the end, $500+ shipping for a refreshed to be like new again unit, and in the color I would have picked if buying new is attractive to me. Also, it doesn’t hurt that I have other DAC’s so I wouldn't be without while it is away for updating. So pretty sure I'm going to go for it. My only concern is will the firmware changes for NOS mode change the sound as I'm sure it's like upgrading the BF2 - where there is no going back to previous firmware.