Thanks for summarizing the discussion. It makes it awesome to have a great forum you can bounce ideas, see what others use and the issues or positive results they get. I'll definitely have to try Tidal, I've used Spotify for years and really do like the interface. At some point they've got to start offering surround options.
Plus the Amazon Fire TV Cube will be a good fathers day gift idea!! I've also bought a couple Blue Rays in Dolby Atmos, so looking forward to that as well.