I would like to briefly review my experience with Sonos products here. I decided after many comparisons with other systems of the Sonos system. The decisive factor for my decision were test results, sound, design and price. It all started for me with a Play3. The sound convinced me from the beginning. The decor was really child's play. I have an external hard drive connected to my router from Fritz, a kind of NAS connected with my music. So I can easily access via the Sonos software on it. Also, I can access via the sofware on my Amazon plyaer and play there music purchased. I have been so impressed by the sound that I bought me a second Play3 and use both now as a stereo pair. Also this facility was child's play. The sound as a stereo pair is outstanding, even the bass is super. Now something negative about the Sonos NOT DEBT IS: I bought a few boxes of Flexson stand. Unfortunately, one has to rely on Flexson because there is no alternative at the time. For a price of about 100 euros, unfortunately you only get a substandard speaker stand. The workmanship is rather moderate. In the two uprights which a metal spikes were tarnished yellowish, the cable guide in the stand was dirty and the material value should not exceed 7 euros. For the price, a real joke. A real shame for an authorized accessory manufacturers a quality system so as Sonos. Finally, I have not bought the Sonos Sub. Now I am completely convinced. The sound makes addictive. He stands for a system of Bose in anything, quite the contrary. My personal opinion: Bose was yesterday, today is Sonos! Better sound, lower price, markedly better operating software, more beautiful design and the use of a separate encrypted radio network have convinced me. But design is a matter of taste. Absolute buy recommendation on my part.