Very quick summary on Quinn Life pensions...
Their charges are very competitive, so more of your money actually goes into the pension fund than with most of their competitors, where bigger percentages of each of your contributions gets siphoned off to pay commissions, company fees etc.
They don't actively manage their pension funds, they follow and attempt to track stock indices, such as the ISEQ. There are lots of debates about whether or not it's a good thing to have a fund manager actively managing your investments. Those in favour of the Quinn Life passive method would say that it's impossible to pick a fund manager in advance that will outperform a stock index. Those in favour of active management will say that while this is true, in practice some fund managers will outperform any given index, and by picking an actively managed fund, you're opting to go with (a) a human being or team who will actively try to beat the index rather than passively trying simply to keep up with it and (b) a betting chance of outperforming the index (with the corresponding betting chance of underperforming it).
There's no right answer to that debate - it's what suits your style.