Done the bays on the Texas coast a few times, never out into the surf. Was a lot of fun when I did it. Have been thinking about a kayak of my own for awhile now, as well as a truck to get back into some of the better places to launch from. Family just got a lake house so I wouldn't mind it for up there too.
Depending on where you are, there should be places you can rent them. Go for the open ones, not the enclosed(my opinion, easier to move about).
What do I think about it? I think it's really damn cool. But I know nothing about it.
It will be fun. Post pictures of what you catch.