Top critical review
About $700 too expensive
Reviewed in the United States on July 20, 2020
To be fair, it works exactly as described - a "turn-key" Roon core. However, it's rather pointless to pay that much money simply for the case. Yeah, it's silent, blah blah blah, but it's important to note that as it's configured, you *won't be using it as a source (ie, the internal NUC's usb or through HDMI). As such, save yourself a ton of cash and just pick up a suitable NUC (using Roon's own list of compatible hardware) and connect it to your network somewhere away from your listening area. The only thing moderately complicated about a ROCK install is the BIOS tweaks, but that too has been adequately documented. NUC prices continue to go lower as time goes on, but the Nucleus' price sadly doesn't reflect that (they've already sunk the money on the board). Look, I dig Roon and their work, but if you're considering a ~$1,400 Nucleus, just buy a NUC, install ROCK on it, and with the money you save, pick up a lifetime membership to Roon's service (with some left over for Tidal or Qobuz).. you'll be happy you did.
------ *EDIT/CORRECTION ------
As another reviewer pointed out, apparently you can connect a Nucleus directly to a DAC and use it as a streamer; I never bothered trying that under the assumption its NUC's USB would simply be too noisy from crosstalk. While I can't definitively declare noise (folks' power "cleanliness" differs, after all) my guess is that if the possibility of such distortion doesn't bother you, a wee bit of fan noise (if any at all!) from a NUC with ROCK installed on it shouldn't bother you either. As such, I still stand by my recommendation to get a suitable NUC, install ROCK, and save a ton of cash.
Lastly, I figured it might be useful to mention what I ultimately went with (after gratefully returning my Nucleus): NUC 8 i7 (with ROCK) in an HDPlex fanless case. I use it as a streamer by way of an independently powered Matrix Audio "Element H". And for what it's worth, I am not employed or associated in any way with any of those vendors.