Odd. I fly Delta all the time and have a nearly flawless experience with them. Reliability, the app, cleanliness, service... I say odd because my friend flew Delta this weekend to come watch the Redskins lose to the Vikings, his flight here was delayed 6.5 hours (two deplane events, two mechanical issues) and then last night on his way home it was delayed 1.5 hours, although admittedly it was somewhat related to de-icing.