We have implemented Cisco Web Security Appliance in quite a few places and the results are quite satisfactory. We haven't faced any kind of challenge from it. Neither has the customer reported anything.
I am a solution architect. So I'm able to discuss in terms of configuration management. All I can say is that from a solution perspective, whatever the customer is basically looking for from our web security appliance, Cisco Web Security Appliance has met it all. And more importantly, wherever we have deployed this kind of Web Security Appliance, Cisco hasn't faced any kind of escalation from our customers. And whenever we go for review with them for their satisfaction level, we have always heard that this is one of the products that they are very satisfied with.