Last year, GUA-LAX seated in J (really just domestic F of a 757) as an FO with complimentary upgrade on a VDB voucher.
AVOD didn't work for 1.5 hours of 5 hour flight. Made a mention of it to DL, got 15K SkyQuetzales. Also got a $100 eCert later that day for giving some feedback on their LAX international arrivals, which was a week old at the time and had some hiccups.