Apple offers three memberships subscription you can choose from:
For $9.99 per month > For less than the price of most albums, you get access to the full Apple Music library, expert recommendations, our take on the best music and on-demand radio stations.
For $14.99 per month > The whole world of music for the whole family. Up to six people can enjoy unlimited access to Apple Music on their devices.
For $4.99 per month > Get the complete Apple Music experience with personalized recommendations, the best new music, and more at a price designed for students.
As stated above, the Apple Music app is still beta and Apple is regularly offering updates ta make the experience as enjoyable as on iOS, the OS that powers their iPhones ad iPads. The update they published today does not introduce anything new but fixes a few things like a playback issue where songs skip over the first two seconds of music. There is also a fix "where albums added to a playlist appear in an unexpected order."
Grab the update for Apple Music Beta in Google Play store.