I’ve owned both. The CXN V2 sounds better and can act as a Roon endpoint now (would still need a Roon core if you want to use Roon), but if using the native OS I like the BluOS in the Bluesound better and with Bluesound you can add on other units for whole house sound. The CXN’s platform is not bad though and easy to use
The CXN V2 can also be modded by Modwright, where the entire analog stage is overhauled with a tube circuit, massive transformer, and quality linear power supply. I owned this and it nearly performed at the level of a PS Audio DirectStream DAC and NAD M50.2 streamer, which together retailed over $10K.
https://www.modwright.com/modifications/cambridge-cxn-v2-tube-modification.php