Longtime reader, first time poster.

Booked Hilton Ponce Resort using a promo for buying three nights, get one free on the Hilton APP. Was listed as a non-refundable rate.

Total was $698.52.

Used Amex promo for $50 off $250 and was applied during stay. Then received the $250 resort credit on the following day after checking out. Not a bad double-dip.