I feel your pain. DL has screwed up nearly every reservation I've had with them this year with multiple schedule and equipment changes. My last reservation, an award ticket booked in F/C with CO miles for ATL-EWR-BRU, AMS-MEM-ATL took about 20 minutes at ATL to get a boarding pass while an agent fixed the reservation, another 30 minutes at AMS while a KL agent had to call a supervisor for help to get a boarding pass to print, and another 15-20 minutes at MEM for an agent to even get the reservation to load in her system so she could print the final boarding pass. I've now spent nearly three hours in line in airports dealing with itineraries that couldn't be checked in online or at a kiosk because they were so screwed up by all of the schedule, flight number, and equipment changes. I've also endured having an exit row aisle seat on an MD-90 turn into a middle seat in the last row of a MD-88 thanks to this mess, which resulted in being told that there were no seats to move me to, and then nobody showing up for the exit row aisle seat I was originally booked in, and a standby passenger being seated there at the last second before departure. I've had it. I may live in Atlanta, but DL is not getting any of my business. I debated doing a status match to DL, and flew NW quite often pre-merger. I'm done. Flying CO and UA out of ATL means a connection, but so what. It's more miles, a much more pleasant experience, and I don't have to deal with the DL madness in Terminal South at ATL, nor the hassle of consistently not being able to check in for my flight because a schedule change of 2 minutes resulted in my reservation ending up with duplicate flights and missing segments (yes, that has happened; one schedule change resulted in the same flight appearing four times on my itinerary, and a connecting segment disappearing entirely). I'm done.