I have fished with team Watters for a while now and they have the unit I have seen what this unit can do first hand and bought one just yesterday was my first time to run the unit on my rig and I caught fish where you could see fish on the SI and where I didint see fish I tried also but didnt catch fish. This unit is like looking at a digital picture of what you are looking at for instance say a tree you can see the branches and if it hasnt been cut off you can see the root system and see where the fish are stacked on the ends or all over I have seen sunk boats house foundations and all kinds of stuff that in reg sonar looks like brushpiles while they wasnt at all I highly recommend this unit it will make a difference in your fishing and even tho it will take a little time to learn it it is fairly user friendly I am sure there will be people on here knock it but they shouldnt till they see it in the boat with someone that has knowledge enough to run it