The apartment was perfect for our family trip to Chicago - 2 reasonable sized bedrooms, travel cot provided and all the kitchen facilities you would expect at home - including a lovely selection of teas and coffees. The apartment is nicely furnished and was immaculately clean.
The location was great - a very short walk to a blue line subway station with elevator access. The apartment is on a quiet and safe-feeling street with easy on-street parking available. The blue line provides great access to loads of tourist stuff, plus to the airport if you don't have too much luggage to take on the subway. An entry point to the 606 walking trail is also nearby.
Laundry facilities on site are paid for via coins or an app which was very convenient (needed a US phone number to register on the app, which we had for data, but otherwise you need a lot of quarters)
The apartment is a basement apartment, so natural light is limited, but we didn't plan to spend much time in the apartment during daytime so not a concern to us. There is a very friendly dog in the front yard from one of the upstairs apartments that you often need to walk past to get to the apartment - it was no bother to us including the kids (both under 5), but probably not ideal if you don't like dogs.
The check in and out process was very smooth and the hosts are easily contactable.
Overall, would highly recommend.