Its google, what else can you say. 90% of the time, telling google to cast to a speaker group fails. The app takes long to load, and the media controls are garbage. Maybe this app works fmgreat for people with 10 devices, but i have 20 google homes, and 100+ lights and sensors and the app crashes a lot. Another product that google give 50% effort. Maybe one day they'll get this right. Theyre lucky i hate apple and alexa more.