This is a very polished and well made plugin – everything operates exactly as it should, easy to configure with a good amount of customization options. The resulting output looks good and should fit in well with any theme you choose to use – having the option to tweak it with some custom CSS is a bonus if something is not displaying quite right for you.
Including Amazon links in your posts can be quite lucrative, I personally have earned a lot of money from the Associates program – if you have a website or blog which talks about products quite often, using this plugin can add an extra later of monetization to your site. I found that over Christmas and Black friday sales go through the roof so by using this plugin you should be able to make some extra money which in turn will pay for the plugin cost.
I found the plugin developer friendly and helpful in the course of reviewing this plugin so you will be in good hands if you ever require any support.