Not very.  It never bought into the neo-lib cool-aid a la Bliar and Ireland has a strong tradition of state intervention in the economy (even under Fianna Fail).  The succession of "National Agreements" or "Social Partnerships" since the late 1980's has also brought the trade union movement into the same tent as employers and Government at national level and meant we never had the Thatcherite union bashing.  

In Irish terms you could characterise it as liberal/secular on social issues, Keynesian on economic issues and social democratic in the sense of supporting a mixed economy with a relatively strong public sector, employment legislation and social protections.  In international terms it would be strongly pro-UN, EU, human rights, development aid, UN peace keeping, action on climate change etc.

In ET terms we could therefore characterise it as "progressive"!!!!!!! without it even having a revolutionary or militant wing.

notes from no w here