Originally Posted by dublinaviator
You can go through US CBP in Dublin, saving you the hassle of having to do it in America where queues can often leave you standing for an hour. Something Aer Lingus and other airlines can use to attract new connecting traffic through Dublin.
My question was about the new facility. I can't see how having customs adds any benefits to the connecting passenger or carrier. In fact it adds hassle, since bags can't simply be transferred but need to be taken to CBP for clearance.