I took the Walden Vista out on a large lake in fairly calm conditions. Was excited about trying a boat made out of recycled plastic. I'm a lean 5'10" female and was surprised at what a tight fit it was for me. Usually I have enough leg room in a 12ft boat, but this model is definitely made for a smaller person. The stability seemed pretty good, but the boat was very frustrating to paddle. Didn't track straight at all, and the least little bit of wind or current catching the boat at an angle spun it around. It did have enough rocker to surf the small waves a little, as long as I headed directly upwind or downwind, but that was about the only fun part. Don't recommend this kayak in comparison to other brands in the same size range.