It's simple to use because it has an intuitive UI that allows you not only manage your clusters but also interact with them in real time using web sockets or RPC calls from other languages like Java/Python etc..
I've used this software so far as part of my work at our startup where we were building out some microservices which required us managing multiple Docker containers across different cloud providers (AWS EKS). The product works well when there are very few nodes within each containerβ¦