Same experience for me moving from Google Play Music to Spotify. Their UI is missing incredibly basic features, and isn't even consistent across platforms.

- Want to clear everything in your queue and listen to something else? You need to select each queued song and remove it manually.

- Adding a song to the queue, OK. Adding a playlist to the queue, impossible.

- Want to change your profile name? You can't do that on the website, just on the mobile app.

- Want to edit the description of a playlist? You can't do that on either the mobile app or the website. I was only able to do this in a Linux desktop app

And those are just the ones off the top of my head.