Reviewers see Google Calendar as a dependable daily planner that keeps meetings, deadlines, reminders, and personal commitments in one place. They repeatedly praise its clean interface, easy color-coding, reminders, and smooth syncing across browser, phone, and other devices, along with useful ties to email. One user also likes newer dark mode and separate calendars for work and personal life. Criticism is light and specific: task organization could be clearer, especially if Google Tasks lists had their own colors. Founder feedback is sparse but points to strong integration value for scheduling-based products.