Reviews for Kilz mold primer on Amazon are mostly positive, with some bad ratings. On the Kilz official website, reviews are nearly all very positive.
More than half of the reviewers on Amazon gave KILZ Premium primer a 5-star rating, with many stating that the product met or exceeded their expectations. Some said that they used a similar product that didn't work very well prior, and that KILZ produced good results.
Some customers gave the product negative reviews, with a few noting that it doesn't work well on water stains. Reviewers on the KILZ site commented that the primer hides discolorations and eliminates odors very well.