The post discusses the impressive simplicity and durability of Amazon S3 (Simple Storage Service), emphasizing its usability and sophisticated features. Users appreciate its high durability, with the claim that data can be lost only once in approximately 10,000 years. The comments also highlight S3's user-friendly API, which has influenced competing services who incorporate 'S3-compatible' APIs. However, the complexity of S3’s backend architecture is acknowledged, raising questions about the economics of storage—specifically, the balance between cost and complexity when using cloud storage versus traditional data storage methods. The discussion includes user experiences, expectations for future features, and a nod to S3's impact on API design across the industry.