I purchased two of the forest green mats and have been very pleased with the quality of the mats.  They have a spongy cushion under my feet which relieves the pressure of standing at the kitchen sink to prepare meals of do the dishes.  All I have to do to keep them clean is wash or wipe them with soap and water and they look brand new and sparkling clean against my newly waxed linoleum kitchen floor.  They look as new as the day I purchased them. I would purchase them again.