Guys, I am absolutely smitten with the Denon HEOS system. I have never used Sonos, but I have had to networked "reference" systems fed FLAC files of all resolutions via Ethernet. Good quality streamers and DACs from Simaudio, Bryston, iFI, SOtM, etc. But I got this complete Denon solution in for review, and let me admit I was skeptical. 3 speakers, a HEOS amp, and link. First the speakers: 3 different sizes, you can connect via wifi, or via ethernet. You download the HEOS app for iOS or Android, then add each speaker to the network. You can: -stream Spotify, Pandora, Rhapsody etc -stream via DLNA from any NAS or networked storage device -plug in a local USB storage device (and stream THAT to other locations) -EQ each speaker -stream lower resolution to save bandwidth. -play different music to each zone I have never really been excited by this kind of set up, but now I am hooked. I love listening to music while doing mundane things, and now I have a HEOS speaker in the kitchen, and bathrooms. I am a pretty routined guy, so when I get up in the morning I head to the kitchen to make a pot of tea..bam...tunes... when I shower and do associated things, bam, tunes...I acquire music at such an incredible rate, this may be the only way to catch up! The other components of the HEOS system, which I have not yet hooked up, are the HEOS amp, which allows you to do all of the above but also attach your own speakers, and the HEOS link, which lets you stream tunes from your stereo to any other HEOS system in the house.