Have had mine since Feb, love it. As previously mentioned, i also find it a good mix of sporty/stylish that fits in with most scenarios. Only problem I have in that regard is that with a shirt on i find it useless as it's so big the cuffs won't slide over it.
I'm currenly at 2d 15h on battery, and sitting on 56%. Estimated 1d 10h to go... i routinely get over 3 days, generally about 4. Does everyone else leave the watch face permanently on? I have mine set to just come on with the wrist gestures (or button/dial activation). Otherwise WiFi on, BT on, screen brightness i think 5. Mostly use it for notifications and time (obviously), but also activity tracking including for running/biking.