![Bradly L.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Bradly L.") BL Bradly L. Lead Engineer Mid-Market (51-1000 emp.) 5/11/2026 "Effortless Workflow Management with Powerful Integrations" 5/5 What do you like best about Knock? I love the ability to test in complete isolation and promote changes to production environments when ready. Holding secrets and variables per environment and integrating with services like Clerk for synchronizing users and organizations via Webhooks is fantastic. The AI chat is amazing for building out prototype workflows and iterating. Having Clerk as the central source for user and organization authentication, combined with webhooks connected straight to Knock, ensures that notifications are only sent when necessary, abstracting away complexities we'd have to build ourselves. Being able to build large workflows in a dev environment and see versioned changes made before committing them allows us to clearly understand the changes. Review collected by and hosted on G2.com. What do you dislike about Knock? Integrations with external mail servers like Mailjet are a bit of a black box; they're difficult to debug when they go wrong so surfacing more of that connection would be helpful. We had an issue spanning a month or so where emails were failing to send from Knock to Mailjet, which ended up being because of IP address blacklisting caused by another customer that we were unable to see or identify through the integration and took a considerable amount of back and forth between us, Knock and Mailjet to resolve. Review collected by and hosted on G2.com. What problems is Knock solving and how is that benefiting you? Knock simplifies complex workflows, abstracts email design complexities, manages in-app notifications seamlessly, and integrates with Clerk for efficient user sync. It allows isolated testing, easy promotion of changes, and holds secrets and variables, enhancing workflow management. Review collected by and hosted on G2.com. Show More Validated ReviewerSource: G2 invite on behalf of seller See what 147 reviewers think of Knock 4.6 out of 5 ยท Verified reviews from real users [ Read all reviews ](https://www.g2.com/products/knock-knock/reviews)