Ordered two pizzas, one came out fine after which the waiter repeatedly said "your other pizza will be coming right out." But after 20 minutes of announcements of the pizza's imminent arrival, I finally called the waiter over to tell him there was obviously a problem. The second pizza order was apparently misplaced by the manager and was never made. The pizza arrived another 10 minutes later and the manager came by to say he would "make things right." At that point the people in our party who had ordered the second pizza did not want to have the rest of us who had already finished their meal wait for them, and only ate one slice each leaving half the pizza.
The bill came and for the manager "making things right" was to remove the charge for the second pizza. To me that would have been the starting point, since the meal had been ruined for everyone.
Four stars for the pizza and zero stars for an incompetent manager and indifferent waiter.