I just did it for the first time and I scored reward$$! I also feel happy because a family of 4 was allowed to get on the flight together. I highly recommend it if you are traveling alone. It is that good- especially because I was only delayed 7 hours and purchased a day in the Sky Club for $29. I am so happy that I could do it on the spot because DH is very cool about that kind of thing. Just a suggestion to travel bees to make a 'what if' plan with DH before you leave on any work trips. All my work friends I was travelling with couldn't do it because their DH would have flipped out. Either that or they weren't expecting it and I think they just couldn't entertain the possibility of changing plans last minute, especially with childcare plans. Has anyone else done this? Was it worth it?