Been driving by Wolfy's for a long time on my way to and from Devon Ave for Indian groceries. I had always been intrigued by the sign (seriously Chicagoans are spoiled by the wealth of beautiful fast food signage here) so I finally stopped for lunch last week. Previously, I had only eaten Polishes at Jim's Original and Express so that is my frame of reference here.
WOW, Wolfy's is on another level. The sausage is grilled over an actual charcoal fire, so the skin gets charred, split and crispy with burnt fat. The fried onions here are also first-rate, with petals recognizably cut from actual onions and deep caramelized flavor, not like the wet shreds you get at Jim's and Express.

The Italian beef is surprisingly very decent here. Rich gravy, sturdy roll and tender, not-overcooked meat. Not a destination sandwich but solidly in the second tier of beef joints.

I'll be back to Wolfy's sooner rather than later.