Reviewers mostly see Cal.com as a polished, easy scheduling tool with a clean interface, smooth setup, and strong calendar integrations, especially for Google and Microsoft workflows. Many say it feels better than Calendly and works well for embeds, multiple calendars, reminders, payments, and built-in video calls. Technical users also value self-hosting, customization, and the API; makers of
IFTTT and
Slashy specifically praise its flexibility and developer experience. Criticism centers on uneven support, some Microsoft/Exchange connection issues, outages, and frustration over open-source feature limits.