Reviews for Rubbermaid's Servin Saver Cake Keeper on Amazon.com indicate that the product appears to be quite good, but with some negative features. After nearly 200 reviews, 60 percent of reviewers rate the product with five stars out of five. However, 12 percent of customers rate the product one star.
Positive reviews praise the product's durability and ability to keep pastry fresh. However, numerous negative reviews claim the product's lid and tray don't seal well, resulting in the connection not being airtight and the lid falling off during transport. The most helpful positive review suggests this is due to incorrect use, but some negative reviewers argue against the explanation.