I do on a daily basis, but I'm a bit of an oddity in that I've strenuously avoided the shift to streaming music. I don't want all the music. To me that's the same as having none of the music. Heck, I don't even want all of my music. I have a set of smart playlists that keep my phone loaded with a mix of less played and less-recently played songs that give me a set of music that changes every day (although it would take me a few weeks of continuous listening to listen to everything on my phone as it is). I've found wifi sync to be flakey enough that I do my daily sync with a cable.