OneSchema is praised for its intuitive interface and ease of use, making onboarding seamless. Users appreciate its tailored functionalities, allowing for high personalization across various industries. The tool's AI provides precise insights, aiding critical business decisions. OneSchema is likened to essential cleaning tools, streamlining data cleanup with features like validation and formatting. It significantly reduces the burden on product and engineering teams by handling CSV imports efficiently. Overall, it is seen as a huge time saver and problem solver, enhancing user experience with visual error correction.