Amazon MCF and Buy with Prime

This app solved a few pain-points for us at once - namely allowing us to automate fulfillment while utilizing our Amazon FBA inventory to fulfill orders to our Shopify site. This simplified our inventory management strategy and saves us time. The Buy With Prime feature gets used by customers who want fast free shipping, and we've had a few comment to us how much they like that feature as it takes the guesswork out of when they will receive the item.

It's fairly straight forward to set up and the MCF/BWP support is great.