BOS-KEF-ARL in economy. Flight was fine. Seats comfortable and IFE varied and good but bring your own headset as they charge. Child had a free meal on each leg of the flight but adults had to pay for food. Have to say that the quality of the inflight food is somewhat better now that you must buy it. When it was free it was inedible. Flight attendants were glacially efficient. As others have said it was mass chaos when it was time to pass through passport check and connect with our flight to Sweden. Afraid we would miss our flight but somehow they processed everyone in time to catch further flights. On the way back KEF was less chaotic and we had a couple hours to wait. Had a totally delicious Icelandic lamb sandwich at the small cafe. Will be flying them again this summer as they are the least expensive option for us.