I second this sentiment.
I am currently surveying an office block were a friend of mine works. Over the years his company has allowed offices and departments to install Broadband. Now that broadband come with WiFi as default I am finding 10 APs on some floors. If our suspicions are correct, hopefully my friend will be able to go back to his finance and IT departments, and get one managed system installed and save lot of money.
This application is allowing me to show him were the APs are, and the foot print of each AP. This application has been a great value for money purchase. And the tech support and feature request have been equally great.