I had a fantastic stay with Justine, her mom, and her kitties!! They were all very friendly (one of the kitties even likes belly rubs!!!) and interesting to chat with. Her place is very close to the California blue line stop (maybe a 5 min walk), but also far away enough that you can't hear the subway. There are plenty of fantastic food options around her that are within walking distance as well. Justine also gave plenty of useful Chicago advice whether it was about dealing with traffic or a food spot and more.
The room was comfortable and the perfect size for one person staying long-term. There were a few days where I had at max 2 family members visit and the room felt a little snugger, but it was fine given that we weren't in the room most of the day. We were also able to keep our luggage in other parts of the house, which helped with space.
I'd definitely stay again next time I'm in Chicago!