Do they have ones you can try on? They look gigantic in all the pictures I've seen, so I'd like to see how it looks feels on my own wrist.
They only had two left to buy, and they had no demo units. It's big, but not as big as I thought. Really doesn't feel or look any bigger than a G-Shock type watch. It really will look much better with a metal band though, not a fan of the leather.
One thing I've immediately noticed is that they need to separate the Google Now stuff from app notifications. Like if you could swipe right from the "home" screen to get to Google Now related things that would be great. Because right now if I swipe away the weather card, it's gone and you can't get it back unless you ask what the weather is like. Normal app notifications are accessed by swiping down from home, so I think they definitely could have them separate (right for Google Now, down for app notifications).
The responses to voice queries are really fast, even faster than from my phone but I suspect it's the same speed.
Starting up navigation from the watch is neat, but currently it works like this. When you say "Navigate home" it will start up navigation on your phone, and on your watch you don't get a map view, it just shows what the next step is on your route. I would really prefer to have a real time map view showing your highlighted route.
Can't say anything regarding battery yet, will wait till the day is through. After getting a few email notifications and using the maps and google search for a bit I'm down to 92% and it's nearly 1pm.