In terms of setting it up and complexity, I would probably rate it a seven out of ten. I spent about a week doing a basic installation of it.

There are several options for downloading Cloudify and it's not too complicated. For the all-in-one, it takes about few minutes. The cluster will take longer. Cloudify can be installed on VM, Docker & K8S

The README notes are very helpful in terms of going through each functionality. We went through these before the initial setup. The deployment took some time because we have a multi-tenant setup, which involved the spinning up of almost four VMs. If TOSCA can communicate with the network for a single solution, it works faster. But if you need TOSCA to do some complex solutioning, it can take some time. 

The initial setup was not complicated but was not user-friendly because it takes time to learn. If mistakes are made or something is missing, it might take multiple tries to rectify problems because the solution does not identify errors. 

For small implementations, the initial setup is straightforward. YAML skills are essential so you can understand blueprinting (define once, deploy anywhere) and best practices.

Another team was responsible for the setup in the low-level environment.

The setup was straightforward.

Initial setup was fairly straightforward though following the documentation.