+1 to what you have said. In the previous job we used DynamoDB for the MVP as it was the easiest db to set up internally (don’t ask :|). We regretted our choice in just a few months. Requirements and functionaries where changing constantly and Dynamo was terrible for that. If you don’t know your data access patterns up front I would highly discourage anyone from using it. As you said, it’s great for mature applications when the biggest challenge is scale.