We have been operating here in our lab for several months, and everything appears to be extremely stable.
OPNsense is highly valued for user-friendly design and functionality, featuring impressive VPN server capabilities such as Radius integration. While offering robust reporting and security features, it faces challenges with virtual server integration and scalability issues, notably with large voice traffic volumes. Though open source and feature-rich, with frequent updates, its reliance on a graphic user interface and documentation limitations affect ease of configuration and comparison with competitors like Fortinet.