Sonos sound systems are fantastic and ushered in some awesome technology that we didn't have when they really started to get off the ground in around 2013.<p>I have had the full home theatre from them for around 5 years now and it sounds excellent. You could go from playing music in one part of the house, playing TV on the home theater, to playing music from Spotify across the entire house all through one app.<p>The problem, is that their app lets them down. It was on the front foot when it was first released because it combined TV audio, with 100s of other streaming services linked together in the one app. But it has now become slow and difficult.<p>Sonos hardware is excellent and the features are still excellent, it's just the execution of those features in the app which have become degraded.