Overall, my experience with MongoDB has been positive. MongoDB provides a flexible data schema and scalability, making it an excellent choice for applications with evolving data requirements and high performance needs. I appreciate that MongoDB scales easily horizontally through sharding, allowing for the processing of large volumes of data. It's also worth noting that MongoDB has rich functionality for querying and aggregating data, making it a powerful tool for working with data. However, there are sometimes challenges with performance when executing complex queries or working with large data volumes, requiring careful schema design and indexing. Overall, MongoDB is a useful tool for storing and managing data, particularly in the context of applications with high performance and scalability requirements.