Share your trips and real-time location from Google Maps

I'm hopeful about this -- it looks like it fits my personal use cases anyway.

I've used several location sharing apps to share my location with family during commutes & road trips -- and all of them suffer from various feature, reliability or performance flaws. There might be better ones than I've tried so far, but I basically stopped trying new ones out of frustration. (Plus, I'm usually running Google Maps anyway...)