In addition to unfettered, ad-free access to Google’s great streaming music service, the six accounts will also get access to YouTube Red, Google’s newly launched premium video offering, which includes ad-free video, offline saving, and eventually, exclusive content.
Considering Google Play Music ordinarily costs $10 per month, this is a great deal. (Although, the logistics of splitting the cost between 6 people are impractical.) I should note that both Spotify and Apple Music offer similarly priced plans.
So what makes the Google plan different? YouTube Red. All streaming music services are essentially the same, so the added video bonus makes Google Play Music a killer.