Reviewers praise Quadratic for making data work faster and less frustrating, especially by removing the pain of complex formulas and manual analysis. Users highlight smooth performance, strong feature depth, and intuitive AI-assisted workflows. Many love its open-source approach and the promise of real-time collaboration, comparing its collaborative vision to design tools. The infinite canvas and support for Python, SQL, and traditional formulas stand out, enabling both technical and non-technical teams to work together. Overall sentiment: polished, ambitious, and already delivering clear productivity gains.