HA Product Options Variants

I am new to Shopify and how you have to add Apps to get the functionality I typically find standard in other carts I've used. I needed expanded Options and the Hulk Apps Custom Product Options was the only "free" choice I saw. Since I didnt' understand how to use their product (they should provided a more detailed description of this) I didn't see any changes when I installed the app. Each ticket exchange took 2-3 days for a proper response. I now see how to use this App and will see if it is a good fit for my store. I was generous on the rating since this is a Free item.