We found some things cheaper, but others more expensive. Never really saw a savings one way or the other. More abput availability. Exception being french products in french islands (cheese and wine). We did major
provisioning in PR in May at Walmart, target, super pueplo, Home Depot, etc. Seemed to be the place to get the American products we had been missing for a year or so.
Also
fuel at Ponce Yacht club, cheapest I’ve come across of any quality.
Disclaimer- all this was before the hurricanes