yeah i always had lowrance fishfinders etc never any issues, but when i seen all the pics that people were seeing with the side sonar i had to have one, so i shelled out a 1000 bucks for the 797c2i then i thought i might want to link them together so i bought a 727 for the front , the screen is too small to be split like that and everything is small, cant zoom it in either unless you click a certain structure you see well i dont see too much cause its so small and its already hard to see to begin with. sometimes the gps comes right up sometimes it takes forever, even if i turn it off while im fishing then turn it back on it takes forever,its like they just make it all way to complicated i shouldnt need a college degree to use a fishfinder...its never been this aggrevating in my life, just give me one with a arrow pointing over yonder and ill be happier then i am with the humminbirds...im definately going back to lowrance with the platinum 3d maps..this crap is for the birds...