Reviewers largely see Calendly as a dependable, low-friction scheduling tool that saves time by replacing back-and-forth emails with simple booking links. They repeatedly praise its ease of use, calendar and Zoom integrations, and usefulness for client calls, demos, and cross-time-zone meetings; one founder of
Specsight says it makes demo booking easy. The main criticisms are limited flexibility for more complex scheduling, some unintuitive or dated interface choices, weak customization, and occasional issues around notifications, booking links, and double-booking conflicts.