I have used the aqua vu. I love it.
It is definently worth the money.I was fishing in a huge lake in November
we were fishing for smallmouthes about 60 to 80 feet deep,We knew thats about the depth the fish would be but it was such a huge lake that we didnt know where to start.We started dropping the camera down on main lake points and humps and around the third point we dropped it on we saw 3 smallies just swimming around on it. So it saved on alot of time on fishing areas where fish were not even at.Also Its fun to drop it down and see what kind of structure is around.I have been on the water for 7 hours and never even threw a bait,I was just playing with the camera the whole day.
I say definantly get the aqua vu, you will not be dissapointed!!

shaun