Longevity report. My T120 dates back to the first year of production. Never had the leakage problems that the very early run boats had reports of. Always used in salt water often for fishing. It has remained in very good condition has not been heavily used maybe 20 drops a year. Still no leaking. Hull shape has not sagging or torqued. Original fittings have not failed or loosened. If you are thinking of getting a used one I would have to say the build quality would be a positive point in favor of the design. I have always found the design to handle well and relatively friendly on the body when paddling.