If you're looking for a classic place (this is typical ambiance, food, waiters and tables) then this is THE place!
One con: I'm afraid your clothes will be rather smelly when you leave...
Favorite Dish: Hhhmmm... so many to name! The pizza is very good but if you want to go for a local dish then try "milanesa a caballo." This is schnitzel (thin piece of beef covered in breadcrumbs) with fries and a fried egg on top.
As for dessert, flan with dulce de leche would be the most typical one. Also budín de pan, panqueque de dulce de leche, etc, etc, etc.
Visit their webpage and check out the pizzas! (pics and prices)
Después de la ópera o de los conciertos los Porteños se va a tomar una pizza a Güerrin , donde se supone que te dan una de las mejores pizzas de Argentina y por lo tanto del mundo
Prueba la pizza especial de mozzarela con anchoas y tomate
After the opera or the concerts the Porteños are going to take one pizza to Güerrin, where it is assumed that they give one of the best pizzas of Argentina and therefore of the world Ask for a pizza special of mozzarela with anchovies and tomato
Classic Argentine pizza restaurant. Standard pizzas sold by the slice at the entrance bar for $1-$1.50 per triangle. Décor hasn't changed in years. It is the oldest pizzeria in BA, owned and operated by the same Italian family for over 100 years.
This pizzeria is so special for me, because I used to go with my grandfather and with my father, and I go to enjoy the best pizza in the world each time I visit Buenos Aires.-
Favorite Dish: Pizza, Pizza and more Pizza. Pizzeria Guerrin offers all kinds of weird toppings involving fruit, seafood, pulses, ricotta and all of them are delicious.-