Square Payments vs Adyen: Which is best for you?

Overall, Square Payments is a very good payment-processing solution for small-to-mid sized businesses, startups, side hustles, or anyone who values ease of setup and flexibility over deep customization or maximum cost efficiency.

The flat percentage-per-transaction model can be more expensive than custom merchant-account rates if you do a lot of sales, or have large-ticket items — so for high-volume businesses, fees may become significant.

The transactions go through smoothly - funds get transferred to us quickly, and if we have to process refunds, they happen seamlessly

CSV form downloads can be quite 'clunky' if there is a way to format before downloaded in order to segment information efficiently.