Crappiepappy,i have one of these units and at the present time i love it.Two guys that work in Bass Pro at Branson,Mo. set mine up for me.It does everything it is supposed to (i think).I did buy the vavionics card about a month ago for it and it helped a 100% for following the river channels.I run it on the 800khz.I have found lots of brush piles and trees with it both marked and unmarked.The only thing i don't like about it is the small screen but u get use to that.I just got stronger glasses and that helps also.If i have any questions about anything at all on it i give those guys Troy or Paul a call @ BP IN BRANSON and they straighten me out on it.The other thing to me on the down scan part is that when u c a tree it does look like one and the same thing with brushpiles.It's just whatever u like and can afford.But when u buy the unit and the card u do have a quite a bit of money in it.But i myself i think it's worth it.I have not had any of the problems some say they have had.And like a few have said the instructions are really a joke.You either need to play with it a bunch or be lucky like me and have someone with the knowledge to either show or tell you.A total stranger can call Branson and the guys will help u in anyway they can.It's just a long distance call but with the cell phones thats nothing.