I used my inReach on my hikes over the past two weekends. My wife likes being able to keep track of where I am.
As noted earlier, I don't think that the inReach sends out track points when it's sleeping, though it's possible that there's some setting that I'm missing which would make it do this. That said, it seems to work okay when paired with my phone and the Earthmate app is running. When I used it on Sunday, I didn't open the app until well into my hike. From what I saw on the map, I don't think that any of the points for the four or so miles that I had already hiked had been sent yet. As I was using it, those points suddenly appeared.
I'd really feel better about this device if I had some certainty that track points were being sent out. My wife knows that if my location hasn't changed in the course of about half an hour then something is probably wrong.