This app is genuinely one of the most frustrating pieces of software I have used. The Sonos speakers are amazing, it's a shame they're goverend by this extremely poor app. It forever fails to connect to a service or verify it is on the latest updates which then makes the simple process of playing music take roughly 20 to 30 mins, at which point you'd rather just not bother. Please sort it out because you charge so much for the speakers to start with! Fund your app devs!