Reviewers mostly see Slack as a strong daily hub for team communication: channels and threads keep work organized, search is fast, and integrations with tools like Google Drive, GitHub, Jira, Zoom, and Notion make collaboration smoother than email or simpler chat apps. Many say it works especially well for remote teams, quick coordination, file sharing, and huddles. The main complaint is noise: busy channels, too many notifications, buried threads, and feature clutter can make it feel overwhelming, especially for casual users, larger teams, or multiple workspaces.