I have a 55lb on my 16ft boat. It will do about 2mph ground speed. Control is awesome. In faster water, I lock the gas kicker on the stern in place and steer with the bow mount. I do that back bouncing eggs or what I call bactrolling plugs (bow upstream, moving downstream about 1/2 mph-1 mph). I'll still use the manual control in really rough conditions to anticipate a needed change rather than make the motor try and catch up.

With the speed at 80%, I get about 4 hours out of a group 24 battery.

Here's fishing this fall. There was gusting, swirling wind. You can see the boats in front of me actually turn toward the shore to keep from getting blown sideways. My bow mount turns to hold the bow in place, and we could keep fishing.