Flomo is praised for its simplicity and ease of use, making it a favorite for capturing spontaneous ideas without pressure. Users appreciate its ability to transform quick thoughts into a structured thinking system, aided by features like cross-platform sync and daily reviews. The app's design and activity grid are highlighted as beneficial for tracking progress and maintaining a habit of reflection. Overall, flomo is valued for its unique approach to note-taking, seamlessly integrating into users' daily routines and enhancing their knowledge management.