There is an incredible variety of pizza to choose from - something like 80 options if I'm not mistaken, covering a wide variety of ingredients and toppings. The location also merits a mention, during the summer months, this area of town is buzzing with activity as there's always some sort of festival going on. There's also a park just in front. A warm summer's day, the smell of pizza wafting through the square, watching locals and tourists walking by, you could well imagine yourself in Rome.
I should mention that I consider this place slightly pricey given the quantity of pizza served. Depending on your budget, you may or may not agree. However, I definitely think this place is worth a visit at least once, preferably in the summer, if only just for the experience!