I have it and love it. I've run both the tow and performance downloads and the most amazing thing is how low the egt's are at WOT. I haven't run the Extreme program. I'll try it next week after the BD TC and valvebody go in. It also eliminates all the 2,3,32 shifting that happened with the Edge EZ. Having the ability to diagnose any thrown codes is also a plus. The PTO high idle option is not needed if you have an automatic with the feature already turned on in the ecm.