It's basically like a really doughy deep dish. It's fine, not amazing. And there's really only one place that makes it with a handful of locations. So it's not very widespread in Colorado.
Oddly enough the most popular place in Denver these days is a Detroit style place.
I am too, but no one else in my family is so we don't go often. The red peppers they had on the table were the best I ever had also, so good I bought some myself. A local company called Flatiron Pepper Co.
It is. After you get to the end, you eat it with honey they set out on the table. After the first time I had it, I never got the chance to go back to Colorado for a decade, but never stopped craving it. Maybe it's something about the way they cook it at a high altitude, but something about the crust was unlike anything else I have ever had.