About 5 years ago, I replaced all of our toilet seats with the soft close seats. You just let them drop and they smoothly and quietly sink down to their resting position.
The problem is... if I visit a friend who has a magnificent seat like yours... (particularly after a few wobbly-pops). I forget that it's not slow close and CLANK!!!
Usually scaring the crap out of myself and the host who thinks I dropped dead.
Thats the one I have gone for. A lovely soft closer. I will have to remember when not in the house that not everyone has them or I will be int he same situation!
It has a button you can click to remove the whole thing in a one'r but I think that just makes it a bit rattly!
You never want the host to come up a knocking asking if you are ok!