Only down side for me in a yak is my back gets sore after a couple of hours even though I completely revamped the original seating. However, although I am not seriously overweight at a max of 183 and 5 feet 9 inches at age 62, I've cut out soft drinks and fast food exercise everyday, so I'm down to 171 and hope to drop below 160 at some point. I'm hoping this will help with my comfort in the yak. Also working on my flexibility.
The only other minor thing is setting the down rigger can be awkward in the kayak.
