Detailed four-star reviews often combine genuine satisfaction with a useful limitation. That balance makes them especially informative.
For customers, the review explains tradeoffs: perhaps the service was excellent but the wait was long, or the product was durable but difficult to assemble. For businesses, it identifies a focused improvement without dismissing what already works.
Encourage reviewers to describe the context, outcome and one thing future customers should know. Specificity creates trust regardless of the star count.
Balanced reviews are usually the ones I trust most when making a purchase.