I received this as well and decided it was worth it, even though I just made DM on Delta again and am about to hit my 1MM. Instead of booking my return flight from Oz on Delta, I booked it on AA and just about made the PlatPro requirements to retain the status until 2021. Will I swap my loyalty to AA from DL, no, but this will definitely make AA/One World my second choice when a Sky Team partner doesn't have a route I need in some weird part of the world.