As Artificial Intelligence transforms various industries, its potential to revolutionize design, particularly user testing, is significant. Traditional user testing can be time-consuming and resource-intensive. Users are the fundamental element of all usability testing endeavors. However, If AI can accurately mimic specific user personas in response to well-crafted prompts, we could swiftly generate effective feedback for our designs, enhancing the testing process, to receive early-stage feedback. This paper offers a novel solution for UX professionals, design students, and researchers seeking to enhance their design workflows and gain insights by providing them with real-time feedback of their designs with the help of an AI-powered usability testing plugin. Unlike generic feedback, the output would be highly specific, tailored to a user persona meticulously crafted by the designer through prompts. Additionally, along with creating custom personas, users will also have the flexibility to choose from a predefined library of user personas, facilitating quick selection and feedback generation. This set of functionalities would expedite the process by providing feedback at all stages of building the project and would help in the iteration processes, significantly reducing the time and resources required for traditional user testing sessions.