Missha's konjac sponge is definitely easy and fun to use, The only reason I'm giving it 4 stars instead of 5 is that I'm just not sure if it is helping my skin. The charcoal is supposed to have benefits, but the dark grey color does make it difficult to spot mold or gunk. I like the feeling of using it on my skin - it's definitely a gentle exfoliation, great for throughout the week. It dries decently (pictured - the dry sponge), and just make sure not to leave it in your bathroom if you have long hot showers - this can increase the risk of bacteria and mold.