Easy to deploy, easy configuration for HA/DR-as well as disaster recovery (if needed). Also it's very flexible when you want more control over your infrastructure components like Network or Databases which are managed by other products in our environment e g VMware vSphere Hypervisor with NSX Manager 2nd level DRS rules etc.). It could be better if there was an option how much resources should I allocate per VMs - currently only 1 core can't handle any heavy workloads without crashing due performance issues but maybe this will change soon? We use openstack at work mainly because we have several different projects using virtualization technologies so having multiple solutions would make things too complicated from one central point where everything runs smoothly together!