Let me go ahead and drop some heresy:
V&N is OK. The old school ambiance is cool. Service is mediocre. Pie isn't really that great.
There. I said it. Somebody had to.
The several times I've been there, I enjoyed it fine, but it simply doesn't deserve its outsized reputation here on the forum. If I could eat only one thin crust in Chicago, V&N wouldn't even crack my top ten. No way. Not even close. Every time I've had it, it's sloppily cared for. Spots of badly burnt cheese on the bottom, etc., for a pure carbon bomb, blowing out all other flavors on that piece. The sausage is just OK. The sauce is thin and not that flavorful.
But look, I get it. You want an old man bar where you can get 75 cent Old Style drafts on Tuesdays and have a pie there, too? Yeah, V&N is OK for that. As a pizza destination? Meh.