I wanted to like this app, but it didn't meet expectations. As a small shop with just a few SKUs, I hoped for a simple solution to handle Amazon MCF fulfillment. Unfortunately, getting it to work required more effort than expected. The manual fulfillment setup was confusing and not intuitive. Orders didn't show up at first, and when I finally got one in, the fulfillment failed due to a vague "Invalid Rate Name" error. It took several emails and a custom troubleshooting video from support to figure it out. ByteStand's support rep, Cara, was helpful and responsive. Still, it's telling that store access is often needed, which suggests the app is not designed with ease of use in mind. The interface also feels clunky and outdated. It makes navigation harder than it should be. Important settings like "Flex" and rate mapping are buried in confusing menus, and there is no real dashboard overview or SKU table to give you confidence that everything is working properly. Then there's the pricing. The app looks like it starts at $25 per month, but it only includes basic fulfillment with fixed manual rates. If you want core features like inventory syncing, which should be standard, you must upgrade to at least $40 per month. It adds up quickly. The pricing structure is not transparent; other users have pointed out the same issue in their reviews. Ultimately, I removed the app. If you're a large store with technical resources, it's worth the setup time and extra costs. But this probably isn't it for small businesses looking for a smooth, affordable solution.