The only issues with the PT-525 I've found so far are when using the punchdown tools - try to wear heavy leather gloves; you're jamming the palm of your hand into the open joint of the tool and it will leave a nasty mark on your hand. The leather carry pouch is OK, but not optimally designed - the belt slot needs to be higher so the tool rides lower. The black dye of the pouch will also rub off on your clothes, too.
Oh, and this thing is BIG - more than twice the size of a standard Leatherman.