I wear mine through most of the day and night, and have done so since it launched. It's a lot more useful having Siri on my wrist for those types of needs, plus the health and sleep tracking is good information to have. I find that I don't use my phone as much as I used to, since I can read messages on it and just respond with voice. And it's great for doing small tasks like changing songs when I'm on the train and using a phone isn't convenient.

It can't replace a phone just yet, but the convenience for many tasks has made it a worthwhile purchase for me.