Glass Nickel is our go-to pizza place. We typically order take out, and it's ready in just 20 mins! They've got "weird" specialty pizzas, but you can order normal toppings if you want. I have tried and liked the Socre Bleu, Fetalicious and The Deluxe pizzas. Didn't like the Border to Border, the spiciness overwhelmed the flavor (and I like spicy food).
The restaurant itself isn't a very good environment to eat in. It has that take-out-place-with-a-few-obligatory-tables-and-chairs feel. If you want to go out for pizza instead of ordering in, go to their East Madison location. It's a much nicer place to eat.