Windows 7 is a good OS for most people but I find it doesn't meet most of my needs. The OS has improved to the point where most of the issues are based on third party Windows software generally being subpar to OSX apps:<p>-Very hard to find free software that isn't spyware infested
-Bad GUIs in most apps -- lots of inconsistency on basic things like open/save dialogs
-Most of the apps are very bulky. Even a simple app has a ton of toolbar icons, tons of menu entries, lots of wasted screen space, etc
-Most Windows apps still include really low res ugly icons. Windows 7 looks nice but then you've got some 16x16 8 color icons or whatever in your Dock that look awful.
-Lack of built in tools (good CLI, SSH, X11 clients)
-Doesn't interoperate very well with my other non-Windows systems (no NFS, AFP)
-Doesn't include a good backup system built in
-No easy way to update applications (like apt or sparkle on OSX)
-Still way too many popups, system tray icons, warnings, wizards, etc.
-Not worth ~$100 to me. DRM makes it a bit too hard to pirate so I'll stick with XP in my VM
-The system wide search feature doesn't work inside of many common file types making it far less useful to me.
-Installing / Uninstalling apps is a bulky process with half a dozen clicks required in each direction.