I've been using it as my primary OS on both my home and work desktop (as well as on several tablets - I work for Microsoft) for about the last year. The biggest

I've been using it as my primary OS on both my home and work desktop (as well as on several tablets - I work for Microsoft) for about the last year. The biggest issue I had with it at first was my perspective on what the native environment is. If you treat the metro home screen as the native environment, and the desktop as a secondary environment, your desktop experience wont be pleasant. While it's fine and dandy to use it the majority of the time if you're on a tablet, on a desktop those interactions don't make as much sense. When I started to use the metro home screen as purely a launcher on my desktop, things became great. I came from a linux background so I really missed the integration that alt+f2 had when I moved to windows (or spotlight if you're an OSX guy). Metro as an alt+f2/spotlight alternative is absolutely fantastic. Winkey+type anything and you're where you want to be. It really grows on you, and I'm honestly more productive on win8 now than I am on win7. As for the Metro apps, on a desktop I've found that they serve a nice purpose if you have multiple screens. I really enjoy having my mail + calendar metro apps up on one screen while I do work on my others. Just my perspective on things, which again may be heavily biased as I work on Windows.