Four of us used last Saturday when leaving SXM. It worked PERFECTLY!!! None of us ever had to show ANY paperwork, not even our negative Covid tests. The Verifly app examines the covid tests, lets you fill out you attestation digitally and then issues a digital pass with your pic on it. You show the verifly pass to the airline attendant, and go straight to the ticket counter with no further questions. I highly recommend it!!!