I know the first run of Urds was to be rather small - perhaps 250. I believe those may have sold out quickly and a second run is planned. Perhaps there are some units DOA, but I have read of only one user with this problem on this forum. Outside this forum the biggest users are on Head Fi and Superbest Audio friends forums. I've read of some USB connection issues there, but no DOA units.
My Urd arrived just fine - not DOA. It works fine, too. The USB-C connection is a bit picky about cables. Perhaps some people are having issues getting a proper compatible UAC2, USB 2.0 cable? Also, it helps to completely read the user manual before using the unit to understand proper operation of the unit. I initially had problems getting the Urd to connect and function properly until I read user manual.
I have had an Yggdrasil since they first came out and it has been completely reliable. The build quality of both the Urd and Yggdrasil are very high, in my opinion. Schiit offers a 5 year warranty on the Urd with 2 years on the Stream Unlimited transport.