Vermont Nut Free Chocolates review for Shopify Marketplace Connect

This is the worst app I have ever used to connect two marketplaces. They forced us to leave codisto and use this app but it has so many errors and is incredibly slow to load content. It also can take 48 hours for our listings to update on Amazon. We will make a listing active and set a new price and inventory quantity and it will become active on Amazon immediately, but the pricing and inventory will not update for days afterward. I have had to manually go into seller central and change prices and inventory there. So what is the point of this app? If we had any other choice, we would not use this.