I have been to Gianna Via's several times, I think because I wanted to like it since I love Italian food! However, I unfortunately can honestly say that I am not impressed. Nothing was particularly bad or awful, but it was overall underwhelming.
The service and atmosphere was fine and the outdoor seating nice in good weather. I thought the food was mediocre and overpriced for the product. I specifically recall getting a penne a la vodka dish with chicken but it wasn't actual chicken breast. Instead it consisted of some sort of shredded chicken. The pizza was also bland and had too much crust around the outside.
I really don't recommend Gianna Via's. I would return if someone with me really wanted to go, but if you're in the mood for Italian, I think you can do better.