I can tell you that the sound quality I perceive from this system is far better than I've ever heard out of any Sonos implementation. The details I get from classical and jazz recordings blow Sonos away IMO. It's not entirely uncritical listening that I'm doing; I just don't claim to have the skill set to do it at a high level.That all makes sense. I suspect this device is “good enough” for most people who aren’t listening critically. I have a bunch of Sonos speakers scattered throughout the house that serve a similar purpose and provide lots of enjoyment.
I understand this is all subjective stuff here; apologies. BTW I rank the BluOS software several levels above the Amazon Link crap, which I revile.