I use Delta as my airline of choice, primarily since I live in Atlanta and it is Delta Hub. I am a frequent flyer member, and unfortunately Delta has the worst Award Program. Difficult to find an Award Flight and if you do it cost much more than other Award Programs.
Regarding my recent flight from LAS to ATL, it was what can be expected from Delta. Running out of food and uninterested flight crew.
Delta "is what it is" but would hope that somewhere down the road they have more concern for their customers instead of the bottom $ line.