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Comparison time! I've used oopbuy, itaobuy, and itaobuy for ordering hats. Here's how they stack up: **Prices:** oopbuy was cheapest by about 86% **Shipping Speed:** itaobuy was fastest (14 days) **QC Quality:** itaobuy had the most detailed photos **Customer Service:** oopbuy responded quickest Overall verdict? For hats specifically, I'd go with oopbuy. The coupons feature made finding good sellers much easier. Your mileage may vary depending on what you're ordering and where you're located. This is just my experience after 62 total orders across all three platforms.