Read reviews for the Kayook by Necky Kayak as submitted by your fellow paddlers. All of the reviews are created and written by paddlers like you, so be sure to submit your own review and be part of the community!
I'm 5' 8" tall and weigh 200 lbs and still have plenty of cockpit room. I could foam it in to fit like a glove like my Sirocco but I like the fact that I can move a bit for comfort and to fish or relax without bracing. Necky had some great plastic to still look as good as it does. I live in Western NY so all of our launch places are rock or concrete. No sandy beaches here. Thanks to the "old" Necky for making a great kayak!
The boat holds a ton of gear if packed properly, making it a workhorse on overnight trips. I carried the lion's share of gear for two people on a two-night trip on the Shenandoah without having to carry anything outside the bulkheads and the boat was still fairly nimble, particularly for such a wide (25") boat. With a regular-sized load, the boat is both fast and agile while still being very stable.
The boat tracks fairly well, occasionally exhibiting a tendency to pull to the paddler's left. I think this may be due to the oil-canning (dent) in the bottom. In deeper water, using the rudder fixes this problem. The rudder system is well-designed and easy to deploy and retract.
As for fit, I'm 6-1/195lbs and the boat fits nicely. My two complaints in that area: (1) my size 11.5 feet tend to hit the underside of the deck and (2) the seat is hard as a rock. I solved the latter with inflatable SeaLine seat and back pads, which can be velcroed on. They work like thermarest pads and can be easily adjusted for a custom fit.
I started looking for a bigger boat (in the 17-foot range), but am glad I settled on this length.