I have (2) M3s, (3) M7s, a sound-bar and a link mate they all work great together. The system sounds great from room to room, you can play different songs on every speaker or the same song on all. Lots of input options and internet radio. The app is pretty handy, it does delete your playlist every time you add a new speaker which is annoying. The range is great, I have no problems connecting the speakers to the hub. Overall its fantastic.

The WAM270 fulfils a key role - namely being able to pipe non-streaming audio throughout the house (e.g. a vinyl collection). The only downsides which i see are 2 - why doesn't it have all the audio sources available to choose as buttons? Some of them can only be accessed via the app. Also, this device receives audio from external sources and creates the stream that other devices can pick up from. Why then can it not do the same to audio received via bluetooth? If you use bluetooth, this then cannot be streamed to the other speakers. Otherwise, happy with my purchase.

no connect audio with f8000 and 2 wam 550 with linkmate. very bad...i'm deluse