I've been to Matt's now a couple times and thought I had been transplanted back to Mr Beef and Al's with the authenticity of my "combo" sandwich.
Had a thin crust pie on last visit and although the sausage and crust were pretty close to Chicago tastes, the sauce could have a bit more zest. It's a tad bland.
Overall, quite pleased to find a place that is not like all the other "New York" style places.