the roon nucleus was a huge disappointment in my system i sold it and moved on. just open the box and look inside your phone has more in it then the nucleus. but seriously its not worth the money. lackluster sound at best my optimized PC was better by far. I'm sure your current NUC will out perform it. To be honest the bluesound node is just as good if not better as a streamer, obviously lacking the roon software. Only reason you buy a nucleus is you need roon and are not able to set it up on another device. personally i didn't like Roon but I'm an outlier i suppose. I'd say even my Apple 4ktv box is about as good as the nucleus streaming Tidal (cd quality).
I moved to an Aurender A10 its better then the nucleus but really not better then the optimized PC i was using prior, IMO waste of money, put the money into the DAC IMO.