Reviewers consistently praise Mercury’s clean interface, simple onboarding, and startup-friendly tools, with several users saying it works well for everyday banking, cards, wires, and integrations. Some also report good support. But the sharpest feedback centers on reliability: multiple users describe sudden account restrictions or closures, compliance reviews with little explanation, and slow, email-only support when urgent issues arise. Card limits and operational disruptions also come up. A founder from
CatDoes specifically highlights Mercury’s API for bank-account and transaction access.