Pretty great although it doesn't seem much different from Olive Garden. Similar atmosphere. Perhaps the menu is somewhat more authentic? When I went, I ordered two appetizers instead of an entree just because I found them more appealing than the entrees. The real reason why I'm reviewing Biaggi's is because our server was INCREDIBLE. Probably the best server I've ever had. I'm not exaggerating. Go check it out.
EDIT: I just ate at Biaggis again for graduation. The place was packed and extremely busy. We had a reservation and they sat us right on time (that's a first!). Our server was again absolutely wonderful and attentive. Despite being so crowded and hectic, Biaggis did a great job managing it.