Reviewers describe Requestly as a practical debugging tool that is easy to set up and useful in day-to-day development. They most often mention intercepting or rewriting requests, switching between staging and production, testing CloudFront headers, validating migrations, and helping frontend and backend teams work in parallel. Several say it speeds debugging and shortens deployment cycles. Criticism is light and mostly about small UX issues, such as a slightly confusing sign-in flow and one desktop app sign-in state glitch.