Independent users treat Cal.com as the free or cheap Calendly alternative: the free tier covers most of what solo users need, it syncs several Google and Outlook calendars without double booking, and several users prefer it to Calendly. The trade-offs are setup effort, since its flexibility takes more configuration than people expect, and costs for advanced needs such as OIDC or enterprise features, plus isolated reports of O365 busy-status sync failing and reminder emails not landing. About a quarter of the Reddit mentions are promotional, mostly self-promotion posts that carry the poster's own cal.com booking link or plug another product.
Independent users treat Chili Piper as the tool for complex inbound routing: weighted round robin, territories and routing straight to the account owner, with form-to-meeting booking in one step. The trade-off is cost and complexity, as users call it pricey or overpriced and overkill for flat teams or simple booking, and a few report no-show, spam-booking and traffic-source tracking problems. About a third of the Reddit mentions read as promotional, including a run of near-identical comments plugging Pulse for Reddit and small clusters pushing meetergo, LeadAngel, Default and Knock, so this rests on roughly 14 independent opinions.
Independent discussion is thin; only about four non-promotional comments give a real opinion, and all are positive. Those users like that invitees can overlay their own calendar on yours, which they find less annoying than Calendly's grid, and call the price reasonable. Over half the Reddit mentions are promotional, mostly a run of near-identical comments that name SavvyCal in passing while plugging Pulse for Reddit, plus booking links in self-promotion posts, so treat this as an early read rather than a settled verdict.