Whilst the ROI base money might "headline" as respectable compared to some carriers out there I can assure you that after you deduct pension contribution (11%), PRSI, income tax, USC levies and union fees that your take home is not healthy at all.
Put them through an online tax calculator though to put it into perspective and to take into account of each persons different circumstances eg: kiddies etc.
As an example I take home 55% of my gross - 45% in taxes and pensions. And the worst bit is that it is only going to get worse as I hit the higher tax band and also given the current economic backdrop and no doubt higher taxes/levies/charges to come from the government. The Northern brethren could well be laughing all the way to the bank