Was just looking at one yesterday at bass pro. So, i dont own one. They are nice! 640x480 with insight capabilities. I hear Navionics is better so Id look into the base package without insight and get navionics with it for an extra 150$. I hear navionics is only neccesary if your a bass fisherman that need to pinpoint with close accuracy. I myself am a troller, i dont believe id need navionics though. Down imaging is an extra 400$ for the hardware. High quality pictures tell you exaclty what your looking at. Very impressive indeed