Just received the 46mm titanium and upgraded from my AWv6 titanium. Quick and super easy. Although noticeably larger these watches weigh essentially the same, the new watch weighing without a band .2 gm more than the old watch without a band. The old Milanese watch band fits perfectly. The Spectrum cellular upgrade was totally painless which contrast with my last Spectrum upgrade for my wife's AWv8 which was a total pain.
The display is much brighter ... ... and music (ie rock-and-roll) actually sounds pretty darn good. For stereo effect, wear one of these on each wrist. 🙂
Regarding the second hand, I was under the impression that there was a mode in which it would not vanish over, say, 60 seconds of arm inactivity. So far I haven't figured out what that mode is, so that's a bit of a mystery.
All in all however I couldn't be much happier. Apple packaging remains super impressive and the watch came 90%+ charged. Class act!!