Just installed, Here's a few notes from what I've seen so far on my Moto 360 1st gen:
- The DND toggles have been changed to just a single button that can only select alarms only. No more priority notification buttons on the wrist!
- Watch is a lot smoother as a whole, but time will tell
- For me at least, the new gestures are a little weird and don't always work (especially the shake to return to the watchface)
- Screen elements (buttons, app icons) seem bigger now
- No matter what screen you're on, if you lower your wrist to the side it will auto-dim and turn the screen off or into Ambient.
- New voice search icon!
- Voice search now stops listening when you tap the microphone icon during dictation, and is also generally much quicker.
- New reminders app on the watch
My biggest concerns are battery life as per usual, as I only got 14-16 hours with ambient on before and performance (which has been especially laggy in the past).