I'm surprised more people have not reviewed Delta. I had an incredibly underwhelming experience with them a few weeks back. They had taken miles out of my account, and after 4 days, 3 customer service reps, more than 10 hours on the phone, and countless emails, tweets, and facebook postings, the miles were finally recredited. When the airline is at fault, it should not be the customer who suffers. I will continue to try to find alternatives until Delta improves.