I bought this phone upon deciding to switch to T-mobile from Verizon.  I wanted a phone with a user friendly music player that I wasn't required to purchase individual songs for if I didn't want to.  I was able to use the player without having to purchase any additional software for my computer.  It is compatible with Windows Media as well as Yahoo Music(which you can also purchase a subscription to.)  It is a my faves phone, which is also a big plus.  It is also IM enabled.