I've had other stuff give out - cotton, snaps, elastic, and especially Velcro - but never PUL. Some of our diapers have been used heavily for 2+ years and the PUL is still going strong.
Kylee, married to my inimitable DH.
Mama to my seraphic sweetheart (3.2010),
my bodacious babe (11.2011),
and impatiently awaiting someone new (8.2013).