With the situation in the US at least, trying to get anyone on the phone is an exercise in frustration. The app (for me, so far) has always been up. The employees don't have to stop making the product to take an order. They don't know the specials, or don't care to look them up which might be changing on an HOURLY basis. The app knows. On the phone I have to go through my order painstakingly each time; the app knows what I've ordered and I can single-click repeat it.
And honestly, all they're doing is taking my order and putting it into probably an admin version OF THE SAME APP. It's LITERALLY the old game of "telephone", but for something I want to buy.