I like the mainstream trend towards flat design (stuff like
this) and the move away from the Apple-ish faux-3d and skeuomorphism of the past decade or so. Much cleaner, more readable, more genuinely computery.
I like metro aesthetically and in terms of how it presents information, it's just shit in terms of usability. My problem with Win8 (aside from political stuff) is that it's two half-finished UIs, neither of which is fully usable alone.
But yeah, get used to flat design and Swiss layouts, you'll be seeing a lot of it for the next decade or so
:Y