LOVE LOVE LOVE this sponge! I hope they NEVER discontinue this! I am so impressed with this that I will never use another sponge, brush or cloth with my face cleanser again! This sponge is super soft and gentle on the skin, rinses clean and although it hardens when it dries, it becomes fat and plump when you soak it in water again. There is no odour even after using this for months. I have replaced it more often, simply because I'm not sure it's okay to keep for an extended period of time but there is never even a hint of odour or mould, etc. For those who want a "scrubbing" sensation when cleansing their skin you probably won't like this. I've never tried a clairsonic but imagine it is the opposite end of the spectrum from this sponge. For me, gentle is the way to go. I've battled acne and redness in past, have oily/combination skin now, but have discovered over time that being kind to my skin has paid off as it's super smooth and clear now.