I got one about three weeks ago (797 combo). I ordered it from an outfit in Maine; cost $1,100. I had a Lowrance X-65 which came on the boat when I bought it 7 years ago. I guess it was time to upgrade and I wanted one with color. I did a little research and decided I wanted a new Humminbird with side imaging. The transducer is HUGE. I mounted it on the transom of my Ranger R82 Sport. It reads the bottom EXTREMELY well under 30 MPH. Once I get over 30 it sometimes looses the bottom. According to the directions it reads best between 2 - 6 MPH (side imaging). My son, grand children and I went to Lake Mitchell this past weekend and it was fantastic. Between the 4 of us we caught over 20 bass (3 were at 3 pounds or a little better), a 5 pound drum, and several bluegill. All of us caught fish (grandchildren are 8 and 9 years old and we used artifical lures). We were able to find the channel up near the dam (under the bridge) and throw to 6 foot area and drag the lures over the edge into 25 foot area. You can spot humps, submerged trees, boulders, etc. The GPS works great also. I got my unit with Navonics loaded so you can follow channels while running 60 MPH instead of watching depths.
If I had to do it over I would have invested a "few" more dollars and bought the wider screen (grampa's eye's aren't what they used to be).