We decided to migrate our existing serverless applications entirely to SST (coming from serverless framework). We're seeing the main benefits in the local developer experience & the use of CDK. Since we are deploying "real" cloud resources with SST during local development, we can iterate much faster, learn more about the serverless / cloud specifics & catch issues before deploying to a preview deployment. Utilizing AWS CDK (Typescript) for IaC matches our full-stack typescript mentality.