Mercury earns praise for smooth onboarding, crisp UX, and thoughtful startup tooling—virtual cards, cash flow visibility, and easy integrations. Founders behind
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highlight that, as makers, the experience feels purpose-built for fast-moving teams. Yet recurring complaints surface: sudden compliance-driven freezes or closures without clear recourse, slow support that stretches days, low or throttled card limits, and occasional operational hiccups. When it works, it works beautifully; reliability and responsiveness under pressure remain the deciding factors for many startups.