As an IT professional, it is a helpful tool with multiple features piled into one. The only two negative critiques I have (since it wasnt free) is the port scanner would be nice if it showed what port number it was scanning instad of the progress bar. Nitpicky--yes, but showing the port number even though it will count too quickly will be more helpful with progress. And the other thing is it has crashed 3 times since I installed it on my 3GS iOS 4.1. I like that you can have pre-determined addresses that are quickly monitoring if a port is open for an immediate troubleshooting tool. I can go on and on, but read the description above. It does what it says. Other than that, I cant wait to keep using it.