I have not owned or used any of this stuff,,,yet. But I will. I think it is great. One of the biggest problems I've had in my area is that I can't get the big boys to talk to me. If I could hail them by name they would probably respond. The Sabine ship channell and Houston ship channell are very busy places, lots of ships and commercial fishing traffic, oil related equipment, etc. Not to mention the Bolivar Road ferry that cuts straight across thru the middle of all of the Houston ship channell traffic. Now, If we just had a Rouge Wave early warning device and a Submerged Container detector we would not have to stay tied to the dock in fear. ;).