So coming from a launch day S0 to a launch day S3 Edition, I'm thrilled a week in. I've left my phone behind a couple times for test runs. Got a call during one of those time periods. Got my AirPods out of my pocket, popped them in and hit answer. I did then have to swipe up and switch audio to AirPods but it worked perfectly. After the call, I tried playing music to the AirPods directly from the watch (no phone around.) Works as advertised. This evening I ran into a store to pay a bill and browse to kill a few minutes. I did find myself reaching for my phone to take a picture to send to my wife. Oops, no phone. I wanted to look something up, hmm, can't do that either. It's really nice still to not have my phone in my pocket.
I posted my current band collection a page or 2 back. My charcoal leather loop is preparing for shipment about a week early. It says it should be here on the 3rd. My olive sport loop still says Oct 11. Don't really have a favorite band yet. I have been switching between them and like them all, which makes it that much better.
The biggest difference to the S0 is honestly the battery. When my S0 would be at 10%, the S3 is >60% even though I'm using the watch quite a bit more than I did the S0. I'm still not a heavy user. I check messages, weather, maybe dictate a few messages, control music a bit; basically I avoid getting my phone out so much.