It is scalable. But that depends on what model you are using.
Palo Alto Networks PA-Series is known for its stability and low maintenance needs once in production. It offers top-tier security, web filtering, and seamless integration with other Palo products, featuring robust VPN protection. The series supports comprehensive logging, aiding troubleshooting and security analysis, while its efficient deployment reduces downtime. However, it requires data security and threat detection enhancements, flexible pricing, and improved technical support to fully meet user needs.