I have used it several times now. The receiver is rather bulky but you get used to it. I carry it in my dry suit pocket when not in use. It definitely works! I was somewhat skeptical in the beginning, surfacing once or twice to see if I was heading in the right direction, and I was. You do have to get used to what the display is in fact telling you. re: (distance and bearing). I am a techno buff so I definitely feel it was worth the investement.