Whenever you want to purchase a product, you need to sign in to your account and fill up your shipping and payment details once and for all. This method saves time as your details will be saved after you mark the “Save for later use” button. After filling up the details, “Add to cart” button will appear. By clicking on this button, your order will be confirmed and you will get your order number. Instant payment method is a quicker method and provides a better checkout experience. This Magento feature list is most useful for the returning user as the details will be saved and they will be facilitated with an “Instant payment” button which will save their time as they will not have to fill the details again.