The OP was interested in the Node, not the Vault. It doesn’t seem like he needs the storage and disc ripping of the Vault.
Bluesound has upgraded the DAC. I still suspect it is the limiting factor but I heard the new DAC I when I went to audition new speakers and the only source the dealer had was the Node running Roon. It’s difficult when the rest of the system isn’t familiar but while I recognized the Bluesound signature, in a system that costs about 1/3 of mine, the whole thing was pretty impressive. At any rate one can always start with the internal DAC and upgrade. The Cambridge doesn’t have a DAC so the Node would be a less expensive proposition, and it costs half the price of the Cambridge.
Otoh, Cambridge now is touting something called mpeg-DASH which allows for better Internet Radio, apparently