Please ignore the 3 1/2 star rating. And please ignore that Marvin dude's review from November of 2011. He clearly has some involvement in the "other Giuseppe's" and his opinion seems a bit biased.
Some quick points you must know...
Incredibly passionate and friendly owner. He literally walks around all night talking to each table. But it isn't the annoying kind of conversation. It's genuine. I've never left a restaurant feeling happier about the meal and the owner.
Incredibly authentic food. THE best Italian food in the Phoenix area. If you're familiar with the owner's background, you know his knowledge of Italian food is for real. Also a fantastic wine list and some solid beer offerings.
Incredibly cool atmosphere. I've never been to Italy but I grew up near Boston and whenever we wanted truly Italian food, we went to the North End. My brother and I felt like we were there. It's nice to be ten feet from where your food is prepared, cooked, and served.
I would not hesitate for a second to recommend this to a friend or a stranger.