I've got a RiverHawk B60 w/ a Honda 15 four stroke. In the summer, I've got a 'Mac's River Runner' installed, which robs performance, but is worth it. Even with that, it will plane two guys and a bait tank with 15-20 gallons. Doesn't exactly scoot, but planes, and moves comfortably.
Remarkably stable. If you stabilize yourself on the bait tank, walking along the top of the gunwale is very doable, and the boat doesn't list much at all.
It does NOT like rough water. It is a great platform (except that it is made of fiberglass, a truly inferior boat building material) for smaller lakes, flat rivers, and swamps, but is very uncomfortable when it gets rough. It tends to spear through waves rather than riding over them, so if there are boat wakes, or worse, whitecaps, you will ship a fair amount of water.