i´ve used Spotify now for about half a year, but since then nothing was developed in better features, or usability.
I use a Nokia 1020 and a Nexus 7 with spotify. The Spotify App on Wp8 is really bad, compared to the android version, which i use on the Nexus. Now i tried Deezer on my 1020, which is not perfect, but much better then Spotify (radio Stations, more better suggestions, playlists etc.)
For this reason i quit my Spotify account and switched to Deezer.
I really hope that forces you to make a better app for Wp8. In this case i will switch back to Spotify.
Sorry for my bad english ;)