The feature that I have found most valuable is their certificate discovery.
Venafi improves security by managing encryption keys effectively, offers extensive automation features saving time and reducing errors, and provides comprehensive visibility into certificates and their statuses. It integrates seamlessly with a wide range of applications and platforms and is highly reliable with robust performance in enterprise environments. However, it has a high cost for implementation and maintenance, complexity in initial setup, insufficient customer support response, lengthy time to deploy updates, and limited scalability for large enterprises.