Yup..no problem with quality or quantity of PVC.. mine is the larger size at 4.3m ..and is a 2005 bought boat. Its stood a lot of abuse ..hauling over barnacle covered beaches .. hits with fish hooks ..and hammerings in heavy seas..without so much as a complaint.
No sign of glue fatigue at 11 years old and am willing to bet it will go a load of years yet..so I wouldn't buy hypalon..not for a boat in Scotland anyhoo..we dont get too much sun. Mine is stored outside all year..on the trailer and under a tarpaulin ..tubes stay inflated all year round..so valves etc dont leak either.
Only thing to be aware of is..they are heavy brutes ..and in my opinion..trailer jobs only.
Would I get another ? ..yup..no problem on that ..its a great boat