Reviewers mostly see FuseBase as a flexible workspace that brings notes, docs, tasks, knowledge bases, and client portals into one place. They often praise its clean interface, easy organization, useful portal features, web clipper and Chrome agent, and AI help with routine work like summarizing and organizing content. Many long-time users rely on it daily for both personal knowledge management and team collaboration. Still, some reviews point to a learning curve, requests for deeper integrations and mobile improvements, and a notable minority report slow performance, weak basics, poor support, sync issues, and lost data.