I use Cisco Secure Firewall Management Center for configuring all the routing policies that I need to do on the firewall, and it acts as a control plane for all the policies that I want to implement through the firewall.
I find it easy to integrate Cisco Secure Firewall Management Center with the company's security posture, as I have integrated it with Splunk as a SIEM solution to have all the correlation rules on the firewall redirected to Splunk, and it integrates easily without any problem.
I cannot answer how useful it is to have the ability to work with the cloud and on-premises version of Cisco Secure Firewall Management Center because all my deployments are on-premises solutions.