On a recent motorcycle trip from the Virginia area to Hyder, Alaska and back snaking all around the country, I used the OK feature on SPOT about every hour to send to my parents. It was easy to send a message without stopping to phone in and not knowing if there was even any cell phone coverage. They had a great time over that 2 weeks tracking where we went, what we were seeing and where we stopped. They had fun and I felt safer out there in the middle of nowhere. Great unit