As a recent Sonos convert, I really think that they are going to be hard to catch in terms of nailing so many aspects of the user experience. Not least of which is how good the hardware (esp the Play:1 speakers) sound and look. I Have to admit how surprised I was to learn that the same company that made those janky wall controller systems a decade ago is now the second largest speaker company in the world.
My only issue is the price, the only thing it gives over any other implementation is the multi room aspect, as soon as a company like Google bakes it in to their already established platform I don't see them selling many units
