Hi, congrats on your new boat!
Here are some reviews from paddling.nethttp://www.paddling.net/Reviews/showReviews.html?prod=257
that should give you an idea about open ocean performance. One very important thing is the kayak has only one bulkhead in the stern. In open ocean you've got to be sure that if you capsize, the length of the boat floats above water so that you can get back in. If it has floatation in just one end, the bow will flood, sink and you'll be left w. "Cleopatra's Needle" a vertical boat.
It needs additional buoyancy in the bow. The usual solution is a pair of float bags.
Also, if you don't have full perimeter deck lines on this boat, you should install them. If you need toggles on one or both ends, install them. All give you or someone else an easy grab hold on your boat during rescues or other maneouvres.
As to storage, keep it off the ground, put on a cockpit cover.
If you are using suspended storage, rack it so that the bulkhead rests on one support and the thickest part of the bow on the other. Do not tie it up by its ends, it will warp.