42mm stainless steel with black sport band. The sport band is comfortable, though does seem to get a little sweaty. I have not worn a watch in 12+ years, so this will take some getting used to again.
Would like to turn off the sound alert for standing up (seems like only muting everything would do the trick)
Snoozing calendar alerts doesn't seem to work
As others have said already, most apps I tried loaded a lot quicker than the first reviews indicated though navigation inside them is sometimes slow.
I'm not used to using Siri to do things like compose messages yet.
Ended up turning most notifications from the phone off, especially those with apps that are not actionable on the watch (like AIM).
Glances don't update quickly, and I decided it was best to try and pare those down to an essential 6-8.
Digital touch is a little odd. Sometimes drawing on it works right away, other times it seems laggy. Same when receiving touches, especially if there are multiple in a row. It's a bit confusing.
Email doesn't seem to sync as fast as it should. I'll look at it on the phone then hop to the watch and it's 15-30 minutes behind and takes 5-10 seconds to register new messages have arrived.
Lots of stuff to improve upon, but quite a nice 1.0 package so far.