
Cisco has been the biggest player in network security for many years, and they have done this by being innovative and reliable with everything they do. Their customer support is top notch as well as their products. Review collected by and hosted on G2.com.
Not really Cisco's fault but The Cisco Adaptive Security Device manager can be a pain but this is because it uses Java and I have heard rumors that this is going away. Review collected by and hosted on G2.com.