I'm interested to know what is working well for people as well. I'm trying to decide what I'd want on my watch. I know of a few things, but I don't know if there is an app for it yet.
1. Weather info from weather.com instead of the default accuweather.
2. Gmail notifications with at least the sender and subject line avail.
3. Ability to send pre-defined text messages as a response. The S voice is pretty good but there are a lot of times where speaking into your watch is just not appropriate.
I'll try the weather.com app now and report back how it goes. I have a feeling that it's gonna suck on the watch in its current form.