When looking for a roadmap tool, consider the following factors: customizability, ease of use, visual appeal, collaboration, tracking, and scalability. The roadmap should represent current products and next-generation product features based on market, competitor, and customer value research. It should be easy to use and created on a platform that is accessible and editable by the cross-functional team. Ideally, the tool should also be adaptable to changes beyond the current parameters. This adaptability minimizes the need to switch tools when a data- and market-driven approach reveals new information.