| Chicago to Amsterdam via Dublin. This review is a long time coming. I’d like to start off on a positive note. Betty and her colleagues working at the check-in desk at O’Hare on the evening of June 27, 2019 were life savers. These women went above and beyond to help me get on an earlier transfer flight, and deserve to be acknowledged. Unfortunately, all other circumstances surrounding my trip were nightmare-ish. I chose to fly them again due to the cost and convenience from Chicago. During my last trip with Aer Lingus my luggage was lost during a connection from Dublin to Rome. Hours and hours were spent on the phone with essentially no help. The only reason I recovered my bag was pure luck. I went to the airport to see if miraculously my bag made it on the same flight the next day and it did. Albeit, it was sitting in the middle of the airport and no one ever contacted me that it had arrived! I received zero compensation for this inconvenience despite submitting a claim to the airline. I booked with Aer Lingus again after the last disaster because the price was significantly less, and the in-flight experience is not terrible compared to some airlines. First, plans changed prior to my departure and the customer service line was worthless. Prepare to be on hold for an hour and then speak with an operator that is prepared to do nothing to assist you. If you must fly this airline and run into an issue with your departure, the only option is to work with personnel at the origin airport directly. Additionally, the check in process at every airport (aside from O’Hare) has been run with zero efficiency. At my recent check in departing from Amsterdam back to the USA, there were two employees working the desk. A family was dealing with an issue and it held up the line for an hour. It would have made much more sense to have them step aside and work with them after the majority of passengers had checked in. The line system itself is also ridiculous. There were two lines marked “check in” and “bag drop” but since most flyers were unable to check in online (another annoyance), it was unclear if there was any differentiation in the line. This created much discord between the passengers waiting and arguments as to whose turn was next. Although I arrived at the airport with almost three hours to spare, given the check-in snafu, I felt I had to rush through security and customs. As such, I did not check my boarding pass and only realized while arriving at security that the agent did not print out a boarding pass for my transfer flight. I rushed to the gate to inquire whether they could print a pass there because of the error at check-in. They told me that they could not assist me and my only option was to re-check in at the Dublin airport. I have an hour and 35 minute layover and also have to go through US customs, so how will this be feasible? Further, now our flight is delayed and there is a very solid chance I will miss my connection back to a Chicago. All in all, do your best to avoid flying this airline at all costs. The consistent terrible service and inefficiency you will encounter every step of the way is not worth any amount of savings.