First: Forget the old reviews; Everything is vegan now and the food tastes great.
We had a menu of the day with juice and coffee/tea, a starter (raw vegan ceviche) and main dish (pasta with very special tomato sauce). Additionally we got some dessert (tiramisu and a peruvian dish) and two large Sandwiches to take home and left happy. Everything tasted excellent!
The staff was very friendly, the toilets clean and they also have a nice shop. You can sit outside if the weather is fine in a relatively quiet spot considering this is in the middle of Santiago.
Cons: Not many warm main course options