Ease of access to playlists on iOS 10
Disclaimer: I have an iPhone SE on iOS 10, but my music is solely synced from iTunes, so I can’t speak for Apple Music playlists.



It should be relatively easy, Playlists is the very first option upon opening the Music app to your library:





And you can easily have the playlist open while you listen to a song so you’re ready to hit play at a later time:





As long as you don’t force quit the app its state will go unchanged and it'll show whichever part of the app you were on before hitting the home button when you reopen it.