We actually came over to consectuve days, and both for drinks and we were not disappointed.
First service was just fun and enjoyable. Evelyn made us feel welcome and was very professional. The drinks we had were the Limonade Andina (a slushy ice mix of syrup and mint) so refreshing and Limonisa (lemongrass tea). We were orginally going to order some alcohol, but as it was after lunch and rather warm, we went with these two freshing drinks.
We liked them so much, we returned the next day, but also ordered a quesadilla, which was yummy.
You have a wonderful view of the Cathedral, the Plaza, warmth of the sun and Evelyn, not much more you could ask for.