I have a very large merchant with 8 clovers and they are about to switch to micros for this exact reason. They are insanely busy, and many times a card is swiped for the wrong table. When this happens, they have to void the transaction.

BUT - there is no feature to re-open the order and apply the correct payment card. Instead, they have to open a new table/order, re-enter all of the items, apply a note to the kitchen "do not make" (because you can't close an order that is not fired), swipe the card again to complete payment. This is a restaurant that has on average 5-10 different items with several modifiers on most orders and when this happens, it is disastrous. It is so bad, that the merchant is very close to taking a loss on 8 clover stations and buying all new micros systems - she has micros at another restaurant that she owns and it has this feature.