Maybe it's just me, but I've never touched a tablet or smartphone, so I had to look up answers for every basic function of the Metro UI. So personally, forcing Metro is a nuisance, and the missing Start Button is problematic. My biggest use of a PC is for video and audio editing, so I need a system that's easy from a "traditional" point of view. Our 10-year-old god-son said "looks like the X-Box" and delved right in, so for those already familiar with touch it looks like a natural.