Costco is a legitimate, highly established, and safe retailer. While it is widely trusted for its bulk value, generous return policy, and long-standing reputation, some customers report frustrations with customer service and online order fulfillment. It is a reliable choice for bulk shoppers, though the requirement of a paid membership and bulk-sized items may not suit everyone.
Video reviews
Pros
- Industry-leading, generous return policy with no time limit on most items
- Highly competitive pricing and value, particularly on bulk items, gas, and pharmacy services
- Trusted, established Fortune 500 retailer with a long operating history
- Membership is fully refundable if you are unsatisfied
Cons
- Requires a paid annual membership to shop
- Customer service can be difficult to reach or unhelpful for online issues
- Bulk sizing is not suitable for all households or small living spaces
- Online inventory is more limited compared to major e-commerce marketplaces
- Reports of inconsistent delivery and product quality issues with some online orders
⚠ Red flags
- Recent 2025 lawsuits allege web-tracking on pharmacy pages shared data with third parties
- Mixed feedback regarding customer service responsiveness and warehouse staff conduct
- Occasional reports of online order cancellations or delivery issues
Safety signals
Facts
Better options
Why switch: Offers a wider online selection and does not require a paid membership for all purchases, though it is a different shopping model.
Another large general retailer that serves as a common alternative for everyday shopping needs.
Based on 8 sources
Costco Review 2026: Legit & Safe? Trust Score 89/100Costco - Comprehensive Trust Assessment | ReviewService Review PlatformCostco Wholesale | BBB Business Profile | Better Business BureauCostco Wholesale | BBB Business Profile | Better Business BureauCostco Wholesale Reviews | Read Customer Service Reviews of www.costco.comCostco Online Reviews | Read Customer Service Reviews of customerservice.costco.comCostco | BBB Reviews | Better Business BureauChargebacks: Disputed or Rejected Payment FAQsBuyer reports
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