Duno, mate, never seen it here.
The PVC quality will be probably the same as for most of the boats, the difference will be the welding or gluing technology.
Many mode boats are welded, pretty time proof, but some bits are glued (handles, rubber strips, rings etc).
When you receive your boat, take a look at the joints around to see I any glue traces, will give you a hint if it glued or welded.
I think if you take proper care of your boat, it will outlast many top quality ones that are left neglected