When I was in Wrocław last time, it was still just a walk-up kiosk, but now they moved to Ofiar Oświęcimskich 19 in 50-069 Wroclaw, close to Rynek.
It's a larger space again, you can sit down once you found it (enter the building, go straight into the backyard, take the left door, walk up the stairs) and enjoy some burgers, pizzas, tortillas and main dishes. Not everything is vegan but they have vegan cheese for the pizza and also cakes. The space is nicely decorated and welcoming.
I had a falafel burger with hummus and my friends the seitan one (both about 9 zl). Very tasty, if I stayed here longer this time, I would definitely return.