Streamers - Cambridge Audio CXN (V2) or Blue Node 2i

You hit the nail on the head. If you have a iPad then the blueos is better software. Cell phone apps work to lesser degree. I like the BS iPad app,
Eventhough I am old school and prefer holding a remote.

I liked the greater selection of free internet stations on the bluesound.

I have the bluesound and really like it. I tried the CA azure and the dac in my oppo 205 was *much* better imo.

To clarify, my music preference is classical. I have used 3 free internet built in apps; chromecast, whatever the 851 uses, and bluesound's. They all have plenty of stations or enough, although I think the bluesound has more with better graphics for each station. I used only remotes and their respective unit displays for the other 2.

The 851 does display incoming quality from cdp or USB. It would be nice to see a display that show both incoming quality,  and outgoing quality that is measured( not predicted), if so-called up- sampling is done, which I detected no improvement from by ear.