My feature wish list from 2013 for any kind of wearable band stands almost fulfilled. If there was a mode for the iPhone switch between turning the ringer ON and Silent mode, Apple Watch would be that state. 

Hardware — Designed to worn for the entire day and how I would love the water resistant feature to make it to the iPhone. Batter life almost lasts for the entire day. And it looks better than any other Smart watch out there. 

Software — Has tons of issues. Haptic sometimes just fails to work and I have had to reboot the watch to make it work. I missed the laundry timer. 

Usage — Going to the previous song on the iPhone and starting a song from the beginning. Running. It also gives you haptic feedback after running for a mile.  I use it to check Meeting rooms for Calendar invites, laundry timers, quick replies to iMessages. It’s good for offline tasks.

If the trial version of a game, the trailer of the movie, holidaying in an exotic location is a sample; its not the same as playing the full version of the game, watching the entire movie or living permanently in that exotic location. The motivation for a trial could be different from the real thing. The trial could be optimized or manipulated for selling it to an audience. It helps to have an approximate scaling factor to scale the sample correctly to the real thing. Be aware about the difference between investing in a trial and the real thing.