From an academic's point of view, one of the interesting things in Ireland is that the system is known as PR rather than PR-STV. Irish people think we have proportional representation. At the time it was adopted and for some time afterward, people didn't know that there was another form of proportional representation, so I think the lesson for you is—and I'm sure that's the one you're following—if you want to adopt a new electoral system, find out more than the Irish and British did originally about what's on offer.
On July 26th, 2016. See this statement in context.