If you want to read about people's experience with Delta's new 3-tiered system, you might want to take a look at the FlyerTalk Forum for Delta Skymiles. Clearly, it's going to take a lot of advanced planning and flexibility to secure desired frequent flyer (FF) tickets in the future, especially in business class. There are also a lot of complaints about the Delta's online Award Calendar and the hefty fees for FF award tickets, especially if they involve partner airlines, such as Air France. See Delta on FlyerTalk

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Eugene