I have been living in Budapest for 7 years now, however only got round to visiting the place mid March this year with a friend of mine in the afternoon hours. There were roughly 10 people inside. The place itself is in a cellar, so it might be hot during summer. Staff speaks English and the menu card is in English and German too. We waited roughly 20 mins for our food to arrive. If you order pizzas you might wait longer depending on how crowded the place is.
My friend had a popeye pizza which was nice, however I prefer the Italian type "thin" layer pizzas. We Hungarians love all types of pasta so I can apologize for this. :D
I had Fried Pancakes Filled with Vegetable Cream served with Mashed Potatoes and Onions. Nothing to comment here. :) The portions are huge.
As for dessert we tried a Hungarian speciality Somló Sponge Cake (just one for both of us) which was just perfect. I love if a place serves exlusively vegan food. 2 main dishes, 1 dessert with drinks we paid ~ 15 EUR which is damn cheap compared to standard European prices, and a bit more expensive than other Hungarian places where you can get vegan food.
Updated from previous review on Sunday May 12, 2013
Cons: no alcohol :)