Flew in and out this week with US Airways from Dublin. Dublin Immigration pre-clearance was great. On arrival in Philly we were ushered past immigration and straight out. I have never seen it so easy. Baggage trolleys were three dollars each but they machine does take credit cards. On our flight back the check-in clerk was a little unhelpful but did his job. Security for Terminal A took about 5 minutes and they were pleasant and to the point. No problems there. The whole airport was very clean and well organised. It was a fair walk to our gate A6 but again this was not a problem. I like Philly and it was quite reasonable for food - unlike Dublin !