I like that OpenStack gives you full control to build and manage your own cloud. It’s flexible, supports different hypervisors, and lets you scale resources as needed — all while being open-source. Great for learning and real-world cloud deployments. Review collected by and hosted on G2.com.

It’s quite complex and feels like a standalone ecosystem. It takes a lot of time to fully understand how everything works together, especially for newcomers. Review collected by and hosted on G2.com.