I went to La Boca two night in a row, Sunday/Monday, when I had to be in Tempe.  The first night our party of six were enjoying our pizzas when I casually mentioned that we'd ordered one pizza without mushrooms and some had found their way unto it.  Within a a couple of minutes the manager was at our table with an apology and an offer to comp a couple of deserts.  Geez, it was just an errant mushroom!  In fact, the pizza here is very good and they clearly go the extra mile in trying to accommodate their customers.
I was please enough to return the next night with my wife and share a Margarita pizza (which is very good).  Wanting something sweet to finish off our meal, we opted for the chocolate mousse.  While it may not have been the ultimate dessert it was quite good and we enjoyed several bites before deciding we'd had enough to satisfy without adding unnecessarily to our growing waistlines.  Seeing we'd only eaten a bit, the waitress comped the dessert.  We explained we'd been happy with the mousse and were just full but she took it off the bill just the same.  
Now, there are a lot of choices where to eat and a whole lot of pizza joints, but for my money a little extra courtesy goes a long way.  Couple that with good food and reasonable prices and La Bocca is sure to see more of me.