We had made that interface easy to use, but it just didn't scale at all. What we've gone to now is, integrating PathMaster with the applications these companies already use to draw their networks. That's the interface they should be using to troubleshoot. Our focus right now is making the interface to PathMaster less visible. The only appearance PathMaster has to the user is a menu that says Analyze.
People are very excited about proactive management of networks.
It helps find things before they break. As they're breaking, you alarm on something and get someone's attention and discover what the cause is before it becomes deadly. Also, there are things you can do during the day, not pain-causing but more status checking, to make sure your network's behaving as expected. We can simulate some box being in one of our networks, but what we don't have is a tool to build simulated networks. It would take a week to design a single configuration of a test network.