I've done a couple of wingsuit jumps but didn't like it, because the one's I did out of an airplane had nothing to reference with just boring big holes in the sky. The openings are scarey because it used to be real hard to get your arms out of the suit at pull time (to reach your toggles/handles in the event of a malfunction). The technology has come a long way in the last decade.
While I wouldn't have minded trying it again, I now have a child and wouldn't push my luck that much anymore as much as the guy in this vid did.