We have used their product when we were doing work with our local DOD agency to implement security features into an existing system that was not secure enough from cyber attacks or hackers! They made it so much better than anything else I've seen before - they helped us make sure all systems had good protection against hacking as well as keeping track of what happened throughout each project phase/milestone.
The best part is how easy working together through this process has been -- always willing to answer questions quickly whenever needed; friendly atmosphere among everyone involved with the projects; very dedicated team overall. Nothing at first glance except price since you get more then just software solutions but also training which helps people who are new use any solution efficiently without learning technical stuff like me ;).