I had lunch at Cada Día with my girlfriend and some friend in September 2015 and was really excited about going to a vegetarian buffet in my first days in Bolivia. However, I felt somewhat disappointed with the place. We got there around 13:30 and some dishes were already over. That was a hot day and there were some flies around the food, which combined with the general cleaning of the place made a bad impression of the whole thing. The food was not very tasty and some of the dishes were very oily. Dairy and eggs were part of many dishes so it would be hard for a vegan to get really satisfied eating there. Anyway, the price was ok (around Bs 25) and the sesame juice was good.
Cons: Not many hot vegan dishes, Not very clean