ASA is stable and with a low level of work required on the maintenance side.
Cisco Secure Firewall is reliable, providing continuous protection and seamless integration with other Cisco tools for comprehensive threat defense. While offering advanced security features like IPS, IDS, and VPN capabilities, it enhances organizational efficiency. Users praise its technical support but find adaptation from ASA firewalls challenging. Difficulties exist in navigating logs and cloud integration. Competitors are progressing, and its high licensing costs present challenges for buyers seeking improved capabilities.