Users appreciate this plugin for significantly enhancing the Gutenberg editor's functionality, making it easier to customize and extend existing blocks without deep CSS knowledge. They find it intuitive and helpful for both professional web designers and beginners alike, particularly valuing its ability to add styling options such as typography, spacing, and animations. Additionally, the developer, Munir Kamal, is lauded for providing prompt support and frequent updates. However, users note some drawbacks, including performance issues like site slowdowns and the use of jQuery, which can bloat the plugin. Some also mention that it doesn't universally extend all blocks, indicating room for improvement in compatibility and efficiency.