The most important feature is self service migration of VMs to different environments (public/private). A very good tool for migrating multiple VM in one go without having any manual intervention from support team which saves our precious resources as well as human effort! Not much yet I am facing some minor issue while creating new environment but it's not too bad so far. We are using this product at my work place where we migrate thousands of servers every month across various AWS regions / EC2 instances etc., It helps us automate all these tasks by just providing few inputs and then automatically takes care about rest of things like storage provisioning & network configuration among other aspects needed during server or vm migrations.