I swapped my Spotify subscription for a Google Music subscription a couple weeks ago for the percieved lack of development. I also seriously miss the album view that they removed (why?) and refuse to re-implement[1] - I frequently make album based playlists, and not having the album covers to group songs by is a pretty big usability issue for me (not just a "nifty trick" as they labeled it...).

Compared to Spotify, what I like better about Google Music:

1. Much better Android client (faster, better UI) 2. Collection and My Albums features 3. Can quickly make a playlist from a radio station based on a song (which can be downloaded to my mobile phone) 4. Can upload music I own that is not in the catalog 5. Lots of top / key albums by Genre and Sub-genre - have found lots of new music since switching. 6. No facebook activity stream

What I miss from Spotify: 1. Having a desktop client (though don't miss as much as I thought I would) 2. Some music missing (only 2 artist so far, and I own the albums so I guess its only kind-of an issue)

[1]:http://community.spotify.com/t5/Spotify-Ideas/Please-restore...