United screwed me over big time when I was flying to Thailand last year. I had a stop over in Tokyo and they delayed the flight for hours without giving us any information. Finally, they made an announcement that the flight was canceled but no one was actually working at the gate. We had to run to the other side of the airport to get hotel vouchers. Once we got to the other side of the airport, no one there knew we were coming so we had to wait several more hours before they sorted things out. While waiting, they were kind enough to give us $5 food vouchers for McDonalds (10). Finally, they bussed us out to a hotel and told us that when we checked in, we would be given details on new flights. Of course no one at the hotel knew anything about flight arrangements so I spent the next few hours on the phone trying to get a flight the next day. There was nothing available and I was told I would probably have to wait 3 days for a flight. By this time, I had been awake and travelling for 30 hours and was approaching delirium. Finally I just decided to fuck it and booked a new flight with Japan Airlines. They were wonderful. tl;dr never flying with United again.