The city roads tool allows users to visualize and draw all roads in a city simultaneously. While users appreciate its simplicity and beauty, there are some challenges such as encountering 403 errors for certain cities and the need for better differentiation between various types of pathways. Users also compare it favorably to similar tools and express interest in potential customization options. Furthermore, the novelty of printing maps on items like mugs adds an engaging element to the user experience. Overall, the tool is seen as effective yet has room for improvement in functionality and design enhancements.