Konva.js provides a declarative approach to 2D canvas programming within React, Vue, and Svelte environments. Users have reported a steep learning curve that can quickly flatten, allowing developers to harness its capabilities effectively. One key consideration for performance-sensitive applications is to manage mouse event listeners, as the default behavior adds overhead. Developers recommend using an opt-in approach for event handling to improve performance. The documentation and resources surrounding Konva.js are praised for their quality, making it accessible for newcomers. Overall, it serves as a versatile tool for projects needing canvas functionality with a structured framework. Users have expressed interest in its advantages over SVG alternatives, particularly in performance and usability scenarios.