Honestly this was a pretty great stay. I was a little concerned after reading a few previous reviews regarding cleanliness and almost cancelled my booking but I'm glad I didnt. My room (most importantly the bedding) was very clean and smelled fresh. I checked thoroughly for hair or possible blood stains as someone had previously mentioned but found nothing.
Yes the floor is slightly slanted in one area near the front door but honestly, who cares? You're staying in a very old home built in the 1800s, its not going to have perfect foundation. Stay in a boring hotel if you want perfection without all the charm older homes like this has to offer.
Now regarding the shower- I will say I was slightly uncomfortable using the shower because I saw the "black mold" someone else had mentioned. Not sure if its truly black mold or just dirty but it definitely needed a good deep cleaning either way.
The only other thing I'd mention is the A/C. Being from TX I am used to sleeping in a cold room with the A/C on blast. There is no thermostat in the room for you to control so you'll have to message the host to adjust the temperature. However, this shouldn't be a bjg issue as the host is very responsive and accomdated my cool temperature needs multiple times during my stay.
Would definitely stay here again if I ever find myself in Chi Town again!
P.S., theres a great coffee shop right down the block, about a 10 minute walk from the Airbnb