So, at this point I think the resulting partnership is desultory. The stuff Hyatt folks get over at AA is basically useless (it's utterly useless, frankly to the point of patronizing, if you usually pay for F up front) and the Hyatt stuff for AA folks is weak until you get up into the really high LP zones (and even there, the value is debatable - if you're swimming in AA miles and can't make SWUs work, however, they might make more sense).