we have a porta bote I am not near as impressed with the newer models, plastic seats, plastic transom, etc.... as the older ones. Mine all have cracks in them, as far as sailing one, no experience there.
My only major complaint above and beyond the plastic parts
are you can't put the porta bote in davits
(we didnt have davits
on the old boat
which is when we bought the porta).
I know I'm not alone in the plastic seat and transom issue as I have seen a few at the anchorage that were in the same shape, same exact cracks. I just don't think they fair well with 365 day a year use.