Good pizza if they bother to serve you. The place is just not organized. The whole restaurant is the line and the waiting area. They need to have people line up in front of the pizza counter who haven't ordered. I just left after 4 people who came in after me ordered from the flustered old guy behind the counter. It shouldn't take me 10 minutes to order a slice when I'm, I thought, 2nd in line. Customer lost.
EDIT: Changed from 1 star to 3. I've been there since, and I think they read my review. They put a hastily scribbled sign up telling people to line up in front of the glass display, as you would at, say, a pizza place.
Pizzaiolo is the best of the chain pizza joints in Toronto, and I'm happy they're back on the menu.