Able to give you alerts on possible slow downs of applications even when the users are not complaining yet. Able to work with other products to assist with application traces.
Room for Improvement:
Hard to setup right, Hard to get the conversations right. Possible need to have lots of touch if you try to add custom apps and port usage.
Once it is setup and seeing traffic, it is an impressive tool to show potential problems long before the general users are complaining. This can go along way to being proactive with Application Performance studies. This is one of the tools that can help with gaining more insight into how applications work when they are complex. Often the only server an application knows is involved is the first one and possibly their main DB engine. How the other services are used is not often well understood. This tool can help gain that insight.