I have a 13' 6" self-bailing Momentum that I bought new 18 years ago. I think it was sold as a 13' 10". But then the 20" tubes are really 19.5" also. It has not been used exclusively as I have a couple other rafts, but I have about 450 days use on it. I have had minimal issues over that time but have replaced 2-3 valves. I removed the glued-in thwarts that it came with and have always used it with a rowing frame. It has not required a single patch and it has seen some rough use. I have had no cracking issues but it is starting to show some chaffing in spots. I would not hesitate to buy it if the price is right and it is the size you want.