Having owned both, I must say that I love the Maxxum Pro 80 which pushes my little 16.5' around quite nicely. The universal sonar does a good job at the front of the boat while leaving the heavy work to the gps/sonar at the console. I appreciate the lift assist as I'm a lazy guy.
As per Jerry, the head doesn't swing around when in 'momentary' mode and you don't have to keep your foot on the pedal when in 'constant-on' mode. It turns very quickly and precisely and is reasonable on batteries (when not driven at 100% speed).
As per using it at the back of the boat - well, I get pretty sour if there is an application for the trolling motor and I'm relegated to the back of the boat......
SS.