This is a totalitarian system: Sonos is placed upstream of the output sound of your PC-and confiscates what you were listening to, which is no longer available on Sonos Sonos devices via your network, which is also synchronized with a voluntary delay of several seconds on the source, which makes the cacophonous with any other original sounds. So we are faced with the same situation as described so well the late Steve Jobs puppet in Puppets: "This is a Revolutionary Everything must be redeemed.." ADDENDUM / REMEDY: in fact, in his great kindness Sonos lets you anyway to continue using your existing system if you pay a toll you 350 by buying a "Sonos connect", which is simply a without speaker cabinet, so that is useless, but ... who has an output jack. In economic literature, this is called "highway robbery".
As, of course, Sonos sound is better than that of a loudspeaker low end, but remains below that provide an amp and a pair of quality speakers, at least mine, is all the more so priori expand existing wired installation. Especially for the price of basic Sonos, 200, there are additional speakers more than adequate.
Bought alone, this cabinet is actually a gadget for listening music independently controlled from the tablet or phone. Nice, but nothing to rave about.
As for the system, it is possible that if I équipais from scratch today, I would take any Sonos, for convenience and despite the price, slightly sacrificing musical quality and totally my choice. But it would be a trade-off cold and reasoned, and I struggle to understand the enthusiasm of most of the comments for a system that the manufacturer has expressly wanted completely closed, without any possible exit to any another device (no, there is no output jack). Enthusiasm comments seems to me rather take a compensatory self-persuasion that of objectivity.