I have recently installed a Sonos whole house system. Not quite the 'plug and play' that they advertise, but it has been relatively reliable and robust since installation.
Sound quality of the various players (1, 3, 5) is perfectly adequate for casual listening and background music in areas like bathroom, kitchen, conservatory, study and so on.
The connect has a middling reputation for jitter, and won't cope with HiRes, but used with a decent jitter rejecting DAC, there is no reason why it won't produce results as good as any of the other streamers or disc spinners available on the market.