The app interface is sorely lacking when compared to their competitors. You cannot navigate back to the shopping cart through the order screen, you instead need to search for the exact store and location. The filters do not work effectively. Most of the business hours they show are inaccurate. The tip percentage is based off the total after tax and fees instead of on subtotal. CS chat says to wait for a survey before leaving, but it never appears. Orders occasionally cancel with no explanation.