Good but has problems
First of all I agree that it should have a replay button like the pc version, also you should be able to add a song to multiple playlists with one tap on add to playlist like the pc version. Ive been having problems with some songs that work fine on pc which is weird, my playlist picture doesnt update when I changed it as well as my profile. I dont understand how on android this works absolutely fine and really well but on iOS it feels more akin to a lite version of a free app, its ridiculous but with A LOT more updates I think this will work as intended hopefully.
Athanasius Kintz about SoundCloud: Discover New Music, v5.2.0