To provide another data point, I use it to quickly check the weather before heading out, see when my next meeting is, get notified of important messages (such as from my wife), quickly send or respond to messages, track my heart rate and exercise, play music without needing my phone, etc.

My recommendation would be to try it. If you find it isn't useful you can return it, but my bet is that after 2 weeks you'll find it indispensable.

I'm thinking of getting one for a single application - Drafts.

It's basically a take-a-note app. You talk to the watch, it records and transcribes your message, storing it in an application that's similar to an email client. At the end of my day I would open my inbox and process my notes.

I've also been getting into time tracking and I think there are some apps for starting and stopping timers from the watch.

Notifications (WhatsApp, iMessage, SMS). I get a lot of them.

Meetings (Google Calendar). I go to a lot of them.

It's great for fitness as well, if that's something that interests you.

I have no idea. I used my phone all the time.

Original Apple Watch