I downloaded the beta software yesterday right after it was available and installed it, rebooted a couple times and did a reset and went to bed.
Synced this morning after entering my weight into Connect and let the watch charge a few minutes and headed out to a local arboretum for a walk with my puppy!
We walked a little over 5.25 miles in about 1-3/4 hrs and the battery was showing 83% by the time we were finished. I used the Bluetooth speaker the whole time listening to music and looking at the map a few times along the way. It had been a while since using the music on the watch and thought that my battery was dropping too quick until I looked at the specs and I see it's right in the normal range. (And all my buttons click)
So far, so good....