You qustrion is not that understandable but I think you mean which part of the usefulness of bitcoin do people like? That is it hofling it, buying and selling it or for making transactions? I like everything about bitcoin, I like to hold it because I know it's price will increase, I like to buy and sell it because people that do it are making money from it, I like to transfer it to someone instead of Fiat because it is a fast and easy means of cross boarder payemt, if my relatives or friends anorqd want me to transfer them money now, I will prefer it to be in Bitcoin.