The text discusses the benefits and features of using Azure Cosmos DB's integrated cache, a read-through, write-through cache that can be placed between an application and Azure Cosmos DB without changing business logic. This cache can help reduce costs and improve performance by reducing request units (RUs) consumed by reads. Datadog's integration with Azure Cosmos DB provides metrics to track the health and performance of the integrated cache, allowing users to optimize their cache hit rate and right-size their dedicated gateway cluster to achieve significant cost savings. The text also highlights scenarios where the integrated cache is most beneficial, such as read-heavy workloads, and provides guidance on evaluating its benefits and monitoring Azure Cosmos DB account performance using Datadog's integration.