Conclusion: The ZyWALL USG50 from ZyXEL is full of security features, including antispam, antivirus, firewall, Web-filtering and intrusion prevention. Designed for the small business, the USG50 offers both application control and security in one little appliance.
Pros: Many features are enabled right out of the box. Application control makes it possible to optimize traffic. Long list of security features.
Cons: Additional licenses for more users or features can get expensive. Interface can be overwhelming.