We are using Vsan for our Hyper-Converged Infrastructure solution with VMware vSphere ESXi Server 6 Update 3. The product works as expected without any issues in my opinion. I would recommend this product if you want to have your own private cloud or need to store multiple workloads into one system. As mentioned above we are running several applications which require high performance storage systems. This enables us to run all these applications at once instead of having them spread out across different servers/workloads.