You are gonna love the 797, but like me it's already time to start lusting for a 997 or 1197.

Installation is pretty straightforward, not much different from any other depthfinder. The only thing that is really critical is to get the transducer mounted so that it will be oriented vertically and horizontally when you are underway at 2-6 mph (that seems to be the best speeds for side-imaging). Even that is not absolutely critical as load factors (passengers, coolers, full livewells of slabs, etc) will change the way the boat sits in the water without noticeable effect unless you really put a lean into the boat.

I mounted my own and if someone electronically challenged like me can do it, you can too.

Now get out there and start seeing what you've been missing. Just don't get so wrapped up in looking that you forget to fish, believe me, it can happen.