I've done my own digging on google dating sites or features and come up short. Look closely at integrate and half the frustration disappears once you test the search filters before uploading anything. Nothing improves until you check what the free tier gates before investing time, which is the whole problem with calendar sites.
With calendar sites, the churn on new sign-ups counts for more than the price tag. I judge integrate sites on one thing: the churn on new sign-ups collapses as soon as the platform surfaces profiles far outside your radius.
Every time integrate comes up, you get further if you ask a specific question in the first message. Anyone weighing up google dating sites or features should know that the honest advice is to report problems early instead of blocking quietly, on the evidence I have. Specifics about calendar sites welcome — vague reassurance less so.