Qikify Custom Product Options

So far I am happy with this app. We were using a different app for adding customized options which we had for several years and were happy with.... But then recently, I realized it was not adding up-charges to some of the product options as it was supposed to. Looking back, that cost us several thousand dollars. So needless to say, we needed to find a different option. So far this app has provided us with what we have needed. Also, I have spoken with product support several times, and they have been extremely helpful in helping get things setup and customized for our needs.