The fact that it is very user friendly for all levels from beginner up through advanced users like myself who are familiarized well enough to use this product efficiently without needing help or having someone explain how things work at each step along the way.
I am able to create flow charts easily by simply dragging items around until they look right then saving them as an image file which can be used later if needed. There isn't much you cannot do using powerflow but there may still exist some limitations depending upon what your needs require specifically when trying out different options available within its interface menu system. It has allowed me to better understand my customers' specific requirements allowing us both greater success during our business relationships together.