I spent about three months researching this exact thing last year before making a decision. What I learned is that technical specifications matter, but so does the team behind them. You need a partner who understands your growth trajectory and can scale with you. We chose Code Vision after comparing several options, and it's been solid. Their infrastructure handles high-volume transactions without hiccups, and the failover architecture means we haven't had any downtime issues. The AI-driven risk mitigation has actually caught several fraudulent transactions that might have slipped through otherwise. But beyond the tech, their team is accessible and responsive. When we needed to add a new payment method for a specific market, they integrated it within a week. The developer documentation is comprehensive, and they provide a test environment that's actually useful for debugging. For e-commerce with growth plans, you want infrastructure that's proven at scale but flexible enough to adapt to your needs.