I wasn't planning on commenting on quality of food, but since other's have been experiencing the same issues...
We were very excited to move into Sun Prairie where there was a Glass Nickel Pizza nearby (we previously lived in the Milwaukee area). The day after we moved in, we decided to order Glass Nickel to eat while unpacking. The staff was fairly friendly on the phone, pizza came in the delivery estimate time. Pizza itself was okay, but not NEARLY as good as the New Berlin and West Madison locations.
The next day, we became violently ill. With the chaos of moving, their pizza was the only thing I ate all day so I'm sure that it was from this. My husband and I are positive we got food poisoning from their pizza. We do not plan on re-visiting the Sun Prairie Glass Nickel Pizza (especially after the reviewer stated that employees were cleaning toilets sans washing hands). Such a shame!!