I ordered the watch and have been using it all day. Surprisingly I love the design of the watch more than I thought I would. I have the 42mm Milanese loop.
The UI is nice too and better than I thought. The navigation isn't a problem and the glances and notifications are both nice (when notifications work).
That said I can't help having the feeling of meh...
The total package is better than I thought but I find myself looking at my wrist and then taking out my phone anyway. The watch is literally just a notification device for me in the four hours I've been using it. Maybe I'll adjust over the next few days but for liking everything more than I thought I'm still having second thoughts.