They last for ages - clean everything without damage - retain no water or odors - can bound skyscrapers in a single leap.These are a fantastic alternative to the typical sponge. You can leave them sitting and they are never sitting in their own liquids. They drain on their own. And overall I just feel more confident using these. I rated it a one-star for absorbency because it isn't an absorbent type of sponge, but that in no way is a negative or bad quality to the sponge. It's just reviewing based on the observation