The food here was great, and this was my favorite veggie place I visited while in Bogota.
As of December 2012 the set meal of the day is 9.000 pesos. Just take any seat and pay afterwards. I've eaten there several times while in Bogota, and I found the food to be fairly creative (more so than the other veggie places) and very tasty. They are only open for lunch Monday thru Saturday. The nearest Transmilenio stations are Flores or Calle 72.
This place has it all; the food is always very good, the building they're in is beautiful (it's an older brick building with character) and the interior is lovely... it's airy, naturally lit and just so pleasant. The street it's on is a nice walking street with plenty of room to walk, and without the throngs of people you usually find in Bogota.
If you can only eat in one place while you're in Bogota, I would eat here.Pros: Creative, Tasty, Lovely atmosphere