Faster creating scripts. Their correlation Engine, is really the best out there. it may need tweaks from time to time, but it can find values that other tools do not. At the end of the day.
The dashboard and reports are also great tools. You have a good list of predefined report and web dashboard, that helped a lot, when I worked with other people.
Price/Performance - this is really the best tool out there.
The price is amazing when you see the list of capabilities you get.
1. The Flexibility is great.
2. Reports and Dashboard.
3. Many integrations
I was testing with webload web application, DB, and a few protocols that were developed in-house. I could do it all either with http, DB protocols, and for the in-house protocols I used their Java integration.