I have had 2 or 3 and thinking of getting another, mine have been Belstaff
got years of use out of them and never had one leak which is more than
can be said of all the textile types I have had they have all leaked to
some extent, though we are talking rain of biblical proportions here.
Only 2 - things I would say is when new the coating can get on other
surfaces and they are not as warm as the modern textile stuff but
make up for it by being dry.