You're writing to the audience, not the reviewer
The instinct when you get a review is to reply to the person who wrote it. That instinct is only half right. Yes, you're addressing them — but the real audience is everyone else who reads the review later. Prospects deciding whether to trust you don't just read the complaints; they read how you answered them.
Review response management is the discipline of replying to reviews thoughtfully, consistently, and quickly — treating each response as a small public performance of how your business treats people. Handled well, a single reply can do more to win a wary prospect than a dozen five-star reviews they scroll past.