Originally Posted by JohnAx

EXP did nothing for me - I called the desk once to get a friend's booking changed, never found a use for an SWU (I always found better/cheaper I-class fares on other carriers than AA's SWU'able fares). Strictly YMMV.

Oh, I did realize that the primary benefit was, effectively a second year of platinum for 'free'. Plat is the level that works best for me.