I have been a Spotify user since 2016. Despite some bugs and shortcomings here and there, I have been very happy with the Spotify experience. If I had to sum up the points I like about Spotify:

• Native last.fm support. This is extremely important for me, I love last.fm!
• Student discount (50% off)
• Great audio quality with OGG Vorbis 320 Kb/s audio
• Good, multiplatform desktop app (which is not a web view for the web player, although I have a feeling that might change soon)
• Great web player which has been getting better over the past years. Limited audio quality though. I don’t use it but I appreciate how smoother it feels compared to the desktop app
• Spotify Wrapped
• Listen count on tracks
• Very helpful for discovering new music
• Great playlists

There are some downsides, which are not deal breakers for me at the moment: