We own 2 original Sport-A-Seats and have had them for five years. They are still in pretty good shape. We got a special discount at West and so we purchased 2 of their Sto-Away seats for only $35 each. Believe me, they are not worth $5 each. After less than two weeks the frame bent on one and the zipper and sewing went on the other. The workmanship and materials are shoddy. The zippers are the wrong kind to use for this application.
I wrote a review at West Marine online indicating this but they did not choose to publish it.
DO NOT BUY THESE! They're only $10 or so less than the original Sport-A-Seat, which you can purchase
online at Sailnet, and I think Defender.