I like how easy it is to use, especially once you learn what buttons are used where in order to get exactly what you need.
It's not very intuitive at first so definitely have someone who knows this program help set up your templates/settings if needed. We were using an older version of Prestimator previously but upgraded when we did because we found some features we wanted weren't available yet (like variable font sizes). Our main problem was trying to figure out which fonts would work best with our paper stock for the most accurate pricing possible.