Brendan Falk, co-founder of Fig, shares his personal experience using Repl.it during the early stages of his startup. He initially used Repl.it to build a server and deploy a live app in minutes, which helped him and his team move quickly. The tool's instant deploys, easy Git integration, and multiplayer features made it an ideal choice for their development workflow. After reaching some limits with Repl.it, Fig transitioned to Heroku, AWS, and S3, but Falk still uses Repl.it for testing new frameworks and libraries. He recommends Repl.it as a valuable tool for developers looking to stay productive in the cloud.