PreOrder Now & Pre order | PQ

Just uploaded this app and so far easy to use. As a new E-commerce business, free apps always help startup costs down while we navigate Shopify and tweak everything for our customizations. Previously thought their CHAT button was slow, but I was wrong! Very quick responses on their live chat. I did notice some lag/flicker on my storefront 'PreOrder' buttons with while I was checking the live settings. Not sure if its the app slowing it down or other issues. However, I'm still willing to work with this app, everything looks promising!