The initial setup of CyberArk Enterprise Password Vault is quite complicated, but if you follow the documentation, I don't think you should have any issues. The issues are only with the solution's support team and the GUI.
The initial deployment just takes about five days to a week if you have got all the network architecture right.
If you don't get the network architecture right, then the deployment could take two or three weeks.
For the deployment process, you should ensure you have some open IP ranges because CyberArk needs to talk to the cloud at its end, so you need to allow certain IPs to make certain connections, after which you need infrastructure and servers in place.
There is a Zip file for your environment, like an image you download from their website, which CyberArk's partners can access. Once you download the Zip file, there are a few scripts to run, and if the scripts run properly, your environment will be set up properly, after which you deploy the connector.
There is a need for an architect who is an expert in CyberArk and networking for the deployment and maintenance, along with one senior engineer.