Ok now I guess I have a legit reason to post in this thread. I returned my (original) AW because it kept losing BlueTooth (BT) connection with my phone. I was on with AppleCare doing a "set up as a new watch" when it lost BT in the middle of setting up as a new watch. I have already had my iPhone 6 replaced for BT issues. It was losing connection to my BT earpiece (Plantronics M70) randomly during calls. The replacement iPhone 6 has not done this once. I assumed my AW BT issues were related to the issues with the phone but when I kept waking up the past few weeks having to put in my passcode more and more frequently rather than simply unlock it with my phone, I decided it was time to open a support case.
Long story short, my replacement AW has not done this once. Every morning I put it on, see the little blue padlock, unlock my iPhone 6 and my AW instantly unlocks. Kinda like things were working the first few months I owned my AW.
So I don't know if my experience is entirely appropriate for this thread which is more about people taking it back for good, but the fact I got mine replaced has me thinking I should post here so anybody with similar issues might consider support rather than simply giving up and returning their watch once and for all. Believe me, when in the midst of this issue, I gave thought to simply going back to a different watch. I've already decided to use a Garmin Forerunner 220 for tracking my runs and I thought about making that my only watch if Apple was unable to figure out how to get my AW working as I expected it to work. Hopefully my BT issues are permanently behind me. AW is far from perfect but when it is working, I like having txt messages, appointment reminders, caller id and driving directions show up on my wrist. I've turned off stand reminders which are somewhat useless to somebody who runs 4 or more miles a day but there are still enough things to like about my AW, I'm happy to keep it and wear a second (dedicated running gps watch) when I'm going for a training run or a race.