I like to use it for quite a bit. I often hunt with my wife and father in law on a property, and it makes it really easy to communicate where things are, where I see deer, and where they're headed. We'll use it as well for sharing waypoints between us, i.e. if I hang a new stand the father in law needs to sit that evening, or if I come across a new scrape line.
On public land I may have only scouted once before, it's great to mark prospective stand locations so I can find the tree again in the dark.
We use it quite a bit when blood trailing too, especially on questionable shots to mark first or last blood to resume the trail in the daylight, or to just record and see where the track has been, and where they're headed.
Sharing waypoints has definitely been the most useful though, which works best when buddies are using it too, so if you find yourself doing that, use whatever software they're using (onX, GoHunt, Huntstand etc.)