Simplicity: jQuery simplifies complex tasks in JavaScript with its easy-to-use syntax and powerful features.

Cross-browser compatibility: jQuery abstracts away many browser-specific quirks, ensuring consistent behavior across different browsers.

Extensibility: jQuery is highly extensible, with a large ecosystem of plugins and extensions available to enhance its functionality.

Community support: jQuery has a vast community of developers and resources, making it easy to find help and solutions to common problems.

Performance overhead: jQuery adds an additional layer of abstraction, which can sometimes result in performance overhead compared to vanilla JavaScript.

Dependency on external library: jQuery requires downloading and including an external JavaScript file, which adds to page load time.

Learning curve: While jQuery's syntax is simple, mastering its various features and best practices may require some learning.

Reduced importance with modern JavaScript: With advancements in modern JavaScript and browser APIs, some of jQuery's features are now native to the language or can be achieved with other libraries.