It is worth the cost.

We have absolutely seen a return on our investment. We are definitely more secure. With the features that are in Palo Alto, we do not have to worry about people busting into our network. Even just out of the box, with the base features, it's really solid. The default configurations are very secure.

Our return on investment comes from the fact that we're not having to spend hours monitoring stuff the way we did before. We've saved man hours and we've saved stress. I can't put a monetary value to that, but that would be the return.

Deploying Panorama has saved us a lot of time. When any incidents happen, our people are comfortable going to the Panorama logs and view the incident report to see what happened.

We use Palo Alto to provide remote access, and we've been able to provide access for hundreds of users with a very short build out time. In the past, this would take a lot longer. Now, we don't have to wait for a physical box, etc.

We have already seen ROI. 

We continue using it, because the concept was at six months, we should receive value back out of it. If the value is seen, only then would we continue using it. It is two years later, and we still continue using it.

We haven't had any security issues since deploying it.

It takes the bottleneck away from the information security teams and increases their agility on projects. 

Our ROI is excellent.