I use it as my primary music player - except when I'm hiking or working out, then I go back to my Clip+. I sprung for Winamp pro, so I can wirelessly sync music to the device from my desktop for times wifi is unavailable. I have several internet feeds, Last FM, Songza, Pandora, Google Play and Plex, Orb and Skifta to access media from my PC. I have all that on my phone as well, but I never use it, because I've been caught with a low, or dead, battery too many times when I need to make a call.
I also like the big screen. My tired old eyes can read it! I need to get some Bluetooth speakers now.