Users rave about the Stackable plugin's extensive features, ease of use, and seamless integration with Gutenberg, which transforms design and content creation on WordPress. It's praised for enhancing website aesthetics, offering dynamic content capabilities, and being a powerful alternative to heavier page builders like Elementor. Users also appreciate its responsive and helpful support team. However, some mention a learning curve for beginners and express concerns about potential website issues if a subscription is canceled. Overall, Stackable is commended for its lightweight nature and user-friendly interface, though there's a desire for more innovative dynamic blocks to stay competitive.