We walked by this little establishment several times during our stay in Philadelphia and decided to try it out as the dishes being eaten by those dining outside looked pretty good. Only when we began to order and the waiter asked us if we brought our own bottle, did we realize there was no alcohol served at Mercato. It was a little disappointing since we do like a glass of good wine or a mixed drink with dinner. But then, when another couple sat down nearby and asked the waiter where the closest ATM was, we realized what else we had overlooked, the cash only reference. Luckily, we had just enough to cover our meal. Being from California where credit card is king and almost every restaurant except fast food joints have a wine/drink list, this was a whole new restaurant experience for us. It didn't take away from the good food. But I'm not sure as tourists, we would go back carrying a bottle of wine and enough cash to make it through dinner.