The only problem I have is that Chromecasting needs a ton of work. The reliability I've experienced has been pitiful, IMO, especially with multi-room audio. When it works, it's fantastic. But one of my Chromecast Audio devices is constantly cutting out or getting lost, and Google Play Music will almost always tell me I've been disconnected from the Chromecast after little more than 10 minutes. It's exceedingly frustrating.