Imo's - we used to call to Slimo's. It both sucks AND blows, and it's expensive, to boot! Worst of both worlds.
We lived in STL for 3 years a while ago. We flew out before moving to look for an apartment, and our first night in town, we figured we'd try the local foods instead of the chains.
So we grabbed a local weekender-type paper, and we saw that Imo's had won the "Best Pizza" award for the last couple of years - gotta be good, right?
Worst pizza I ever had in my life, bar none. And in equivalent 2008 dollars, it was about $25 for a large pie with a few toppings.
It wasn't Chicago Style, it wasn't New York Style, it was the worst of both - a thin round crust like a stale mazoh, cut in a random square pattern so most pieces were an inedible mess, and it had AMERICAN CHEESE on it. Having already paid too much, we looked at the fine print and saw that mozzarella was extra cost!. I was appalled. 20 years later I still remember just how awful that pizza was.
Couldn't get a decent hoagie there, either, until a Subway opened up.