Bloatware. A pain to navigate. Devices notwithstanding, the Zune software is much better. I’m tired of software updates every couple of weeks and especially tired of being offered Safari.
I don’t get the pain to navigate thing although having used only it as my media player for 5 years now maybe I have just adapted. The few times I have tried Linux I fiddled around with Amarok which so many are in love with and that is what I found to be a nightmare to get do what I want.
It seems most people who don’t like it are on Windows. It is odd that the one Apple program most people have on Windows is one so many find bad. It seems like they would put tons of effort into it to try to get people to switch.