Have had my early model, solid white, heavy-duty plastic Rrrrapido for about 9 years. Got it at a whitewater auction in Washington, DC. Loads of fun. Very stable and easier to steer than conventional sit-in short-ish kayaks. Have enjoyed weekly paddles on the flatwater Potomac River and some mild ocean surfing in Outer Banks, NC. Had trouble getting out through the surf there without being tossed head over heels (and the kayak coming down on my head!).
Recently lost one of my knee straps; if anyone knows of one, cheap, please let me know at consumer101 at hotmail.com (more than $75 to replace through the company). Also, screws keep coming out.