The SoftClose lid closes Carefully right after use, doing away with bathroom seat slam. The S350e model gives sensors for automatic opening and shutting of the lid. I am aware I am late in replying to this but I just desired to give my standpoint on Toto's Sanagloss. First off http://sexybar81245.collectblogs.com/22399510/not-known-factual-statements-about-validation-toto-site