linstor is very easy to use and install with its built in features like docker volume mapping & cgroups container management are great as well as the native scheduler which helps me manage my applications/services across multiple nodes.
The pricing model could be better but it should not increase when you scale up your instances or services. It's good solution if you have few nodes where you want to deploy some micro-service applications then also this will help you to do so without hassle of managing many VMs manually.