I have similar issues with their desktop app and the UI seems to get worse over time. Their API is pretty good and I've used it to build a PoC desktop client u

I have similar issues with their desktop app and the UI seems to get worse over time. Their API is pretty good and I've used it to build a PoC desktop client using JavaFX that works using simple table controls and local Sqlite caching so I can search/filter my playlist "library". The API even has playback controls and nowplaying support. Pretty much everything needed to build an alternative usable client. The reason I did not continue with it and I'm still stuck with their desktop-(but-actually-web)-client is that the playback control API seems to be blocked by Sonos so I cannot use it to control my main listening devices. I love Spotify as a service but their clients are horrible.