A negative review is read by far more people than the person who wrote it. The reply is therefore not really addressed to them. It is addressed to everyone deciding whether to risk you.
What a reply is for
It is not to win the argument, change the reviewer's mind, or get the review removed. It is to show a future customer that when something goes wrong here, an adult handles it.
That reframing solves most of the difficulty. You are not negotiating. You are demonstrating.
A structure that works
Acknowledge the specific thing. Not "we're sorry you had a bad experience" — name it. "Twenty minutes for a coffee at 8am isn't the morning anyone wants." This alone separates a real reply from a template, and templates are obvious.
Take proportionate responsibility. Not a blanket apology, and not a defence. If the wait was genuinely long, say so. If the complaint is inaccurate, correct it once, plainly, without heat.
Say what changes. Specific and real: "we've added a second person on the bar before 9am." If nothing is changing, do not invent something — say you have passed it to the team.
Offer a route off the platform. One line, once. "If you'll email us at hello@, we'd like to make it right." Not a demand, not repeated.
Three or four sentences. Long replies read as defensive.
The phrases that make it worse
"We have no record of your visit." Reads as calling them a liar, even when true.
"As stated in our policy…" Nobody has ever been won over by a policy citation.
"We're sorry you feel that way." A non-apology that everyone recognises.
Anything sarcastic. It will be screenshotted.
Anything revealing their details. Confirming what someone bought, when they visited, or any account detail is a privacy problem, sometimes a legal one.
Speed and consistency
Respond within a few days. Response rate matters more than perfect wording on any single reply — a profile where every review is answered reads differently from one with scattered replies.
Answer positive reviews too, briefly. A wall where only complaints get replies looks like damage control.
When it is not a real review
Genuine criticism stays, and should. But some reviews violate platform policy: spam, conflicts of interest, hate speech, content about a different business, or a competitor attack. Those can be reported, and sometimes removed.
Report them, then reply anyway while they stand. A calm public reply to an unfair review is often more persuasive than its removal.
What no tool can do
No product removes genuine negative reviews. Any vendor implying otherwise is either reporting them speculatively or gating solicitation, and both cost you more than the review did.