The best part is that it does not require any special tools or equipment to operate, just a standard ruler/measuring tape! I love this product because it allows me to measure roof dimensions without having to leave my desk and go outside. It can be used both indoors & outdoors easily, even when there's rain. There are times where using its features could be tricky sometimes but overall I'm happy with how easy it makes measuring roofs for building projects. This software has allowed us to reduce time spent on measurements of buildings' roofs by up to 50%.