There are definitely some great new features like the "learning process" article etc but I'm talking primarily about the look here. I don't know quite how to put it but it's like things are suddenly much bigger, but there's less of everything.
Also, the layout feels so alien and much less homely than it used to. Then again, I have to get used to the changes before I can give a more non-nostalgic comment. I definitely miss GT v1 but if the new layout will make the site more friendly for the whole community, I'm all up for it.
Regardless of how I feel, great work guys. Keep it up.