I bought the Dot mainly as a way to instruct my Sonos speakers to play music. Whilst it does work, the verbal instructions need to a be a little too specific. It would be great if you could just set a preferred speaker or speaker group to default to. Having to specify 'Play xxx on Spotify in the Kitchen' is a bit of a pain (first world problems aside). Whether this is Amazon's fault or Sonos', I'm not sure, but hopefully it get fixed in the near future.