Buy Button channel

I've been using this app for years, and I finally have to point out that it's a very faulty app. When I add the code to a blog page, and it looks fine, I come back to the page months later to optimize the page, and the code is altered or not working. Really unreliable.

Great app, thank you!
Feature suggestions:
1. Save buttons generated so that it is easy to edit the button and use the code.
2. When adding a collection make it easier to adjust the size of the images so that it can all be the same size or square, etc.
Thanks!

Le concept est super, mais le problème c'est que, quand on met un produit dans le panier, ça ne va pas dans le panier shopify mais un autre panier. Donc le client peut avoir 2 paniers en même temps qui ne se synchronise pas. Dommage car c'est une super application. Faites-la marcher correctement s'il vous plait, elle est mega importante pour développer son business

No option to give % discount and free shipping

Not compatible with Subscription based products - including their own Please advise