Obento is not on top of my list but if you fly UA International F a lot, the food gets boring. Don't expect a lot from the Obento meal but, if you are hungry and want to sleep early, Obento is a great choice. It's a two-course meal and, if you don't like fish (main course), the first course and the rice (wrapped in some leaves) will fill you up.

You have to know what you're doing/eating or it can be embarassing experience especially when there are F passengers who know how to eat Obento. Most of the time, the Japanese passengers on the flight order Western food with wine and all.