ASA is stable and with a low level of work required on the maintenance side.
Cisco Secure Firewall offers exceptional security features such as IPS and IDS, complemented by high availability and clustering for nearly 99.999% uptime. AnyConnect provides remote access VPNs; however, it lacks features like route-based VPNs, and configurations are complex due to command line requirements. While the REST API allows for customization, the firewall's SSL inspection is slow, impacting performance. Integration outside Cisco's ecosystem is limited, requiring third-party solutions for upgrades.
