Edited 7/3/22 When it works it is "reasonable", but all too often it crashes! I have just spent four hours, partially successfully, trying to reconnect three speakers. REALLY irritating, and I've only managed to reconnect two speakers!!! 26/5/2020 TuneIn radio has stopped providing certain stations. Perhaps Bose should raise this issue with them? 28/5/2020 The app now is failing to work. 1/6/20 I now have had to reinstall the app a couple of times to get it to work. Not great!