Amex Credit at Walmart

This appears to be a targeted Amex offer for a $10 statement credit when spending a certain amount at Walmart, not a direct product discount. The deal itself is a credit, not a price reduction on a specific item, making it a decent offer for those who use Amex and shop at Walmart. The other deals mentioned in the title (Walgreens, Harbor Freight) are not detailed, so their value cannot be assessed.