My wife got extremely sick from the oysters, I found a worm/bug in my oyster (to be fair, it's a raw bivalve from the ocean, yeah there's going to be some funky stuff in there, but still...), and the host (manger?) spilled half of my beer on the table and did not offer to replace it.
I used to love this place; great beer selection, amazing food, cool atmosphere. Honestly, those haven't changed, but the staff is just not what it used to be, and, unfortunately, we got unlucky with the oysters this time.
I let our waiter know that my wife was extremely sick from the oysters (she was literally in the restroom; I won't go into detail), and that he should check the kitchen to make sure that everything was kosher back there. Their response was to tell us that their oysters and beef had just come in that morning so it couldn't have been them. Then they "generously" comped us a $10 burger...
Again, not trying to be a Karen; I know that we're not their only customers and that they have a lot on their plate, but we really left feeling like an afterthought for the waitstaff. There are a lot of great restaurants in Chicago. I never need to go back to this place again.