I love being able to upload my own cover image for my playlists, and when I listen to a playlist on the desktop app, I can see the playlist art at the top, as well as the thumbnail of the album art in the corner. It would be nice to have a way to view the playlist art instead of the album art when listening on my phone (or see the album art as only a little thumbnail).
playlist cover art on desktop (with album art as thumbnail in bottom)
album art on ios when playing the same playlist.
I would love to be able to see the art i upload for a playlist big like this on my phone instead of the album cover of each song.