Anyone using the OptiView XG for network troubleshooting?  Looking for feedback before I pull the trigger on this very expensive tool.  Are there other tools like this that are cheaper?

We work on larger networks and I am looking for a tool that can do a network discovery and show a map of how all devices are connected to the network including ports and uplinks automatically.  The path analysis feature where we can see how 2 devices are connected and see the path used will be extremely helpful.  Port scanning and other troubleshooting tools are a bonus.