The plugin, simply put, does what it says on the tin! Not rocket science, it enables you to insert images from Amazon to your website. Simples!
The negative, as others have mentioned - is a pain in the behind;
You place your cursor where you want the image. Insert the image. The image is now at the bottom of the article. Not great - not the end of the world. But this now means you need to drag it up to where you want it. With a mouse, its fairly quick, if on a laptop using a trackpad - its an unwelcome chore.
Jake - please take note of the feedback given and push an update to fix this annoying bug. (using Glutenberg on Oxygen builder)