I've had a few. I mostly use it to tell time, overview the weather and get notified about calls. I have a toddler that sleeps with me. I am also on-call for work half the time, so if I get called in the middle of the night it wakes me up so that I can sneak off to work a bit without waking the kid.

My pebble time had a great Google maps app for navigating. It was great. Nothing screams tourist like walking around with your phone to navigate.