Round trip ORD-WAW-KBP. I found B767 to be surprisingly spartan (no adjustable air vents over the seats in economy for example). The return trip was a disaster. KBP-WAW flight was delayed by 4 hours which meant I missed my connecting flight. I was put up in the Mariott adjacent to WAW which was nice but making the arrangements was a pain and should have been done for me when I got off the plane. I had to stand in 3 different lines for the better part of an hour to get the arrangements taken care of. The next morning I was put on a flight to Newark because the ORD flight was full and that flight was also delayed by 4 hours. When I became aware of the delay I talked to someone at the desk to ask if there were any open seats on the ORD flight that was boarding at that time. I was told that there were in fact some business class seats but upgrading would have required going to the ticket desk at the front of the airport. Nobody at the gate seemed to be authorized to do such a thing. In a situation where there are a dozen or more passengers like me who missed their flight to ORD the day before there's no excuse for any business class seats to be empty on the next flight to ORD. By the time I got to Newark there were no remaining flights out that night so I was handed another hotel voucher and got on an uneventful flight on American Airlines the next morning and arrived home 36 hours behind schedule. To the credit of LOT in Newark they had my voucher and rebooking ready but could do nothing more than just apologize. Why couldn't the people at WAW be this organized? It's LOT's main hub after all. I understand delays happen and missed connections happen but I think when you're handing someone their second straight hotel voucher perhaps you owe them more than just a ticket to get them the rest of the way home.