This is the first time I try a product Garmin.Auparavant I tried the full range Magelan. I can say that I was very surprised at the speed of receiving satellite signals in equatorial rainforest. While I had to wait 15 minutes before to start the GPS in the morning, now it takes me a minute and it remains available for the rest of the day. I even managed to make the point at the inside of a house! So needless to say I am very satisfied with the GPS 72 H makes me great services to create or follow forest trails. The playback screen is difficult at dusk. Mated to a satellite phone, it gives me a great sense of security during my solo expeditions in deep forest.