Check in was a breeze in LAX, and the customer service was friendly and efficient. The flight from LAX to Chicago was on time, and the flight attendants were welcoming and the service was quick. Plane change in Chicago was easy as the gates were close together. The flight from Chicago to Edinburgh was in time, but bumpy. The service was slow due to turbulence, but they did the best service possible in between the fasten seat belt times. The flight home from Edinburgh was rerouted due to storms, so I missed my connecting flight. They did everything possible to help me make my connection, however there was just not enough time to go through customs, and then get to my gate. The had me booked on another flight before I was even through customs, with just enough time to make it to my gate. Great customer service for a tired traveler, and much appreciated. The food on all flights was typical airplane food, not the best, but edible. I would fly United again.