My impression has been mostly positive. However, there have been some pitfalls. For example, it runs until it does not - and disaster recovery documentation is sparse and mostly unclear. This consequently follows a long learning curve and can take some time until this can be done efficiently. The feature log-structured file system has been removed. While I have not used it, I know some colleagues who have reported some performance benefits under certain circumstances. Additionally, vSAN does not offer extended SAN features like inline deduplication, compression, or S3-compatible access, which is part of most modern SAN feature sets, also in hyper-converged scenarios.
