We are using this order attribute to ask for the delivery date from the customer. Because our business is based on tourist customers, some customers will request to deliver it within a day, so we will arrange it. So I feel it is good for us. Review collected by and hosted on G2.com.
If we use a custom order attribute, we need to check it after every Magento 2 upgrade. And some paid extensions not giving proper support and upgrade. We need to maintain the extension up to date based on the Magento 2 version. I dislike this. If Magento 2 is providing this feature, there is no issue. Review collected by and hosted on G2.com.