We were so impressed by Bill and Kathy's responsiveness when we booked the stay, to welcome us to the apartment, and to check on how we were doing. The apartment is incredibly clean and feels quite safe. We appreciated the easy, free parking on the street, right in front. I would echo other reviews that remarked on the thoughtful touches and well-stocked kitchen setup.
One thing that might not matter for some, but we really liked was that the security shutters on the back window make the living room pitch black in the morning (if the bedroom and bathroom doors are shut). Our young son wakes up with the sunrise, and he slept on the sofa bed well past when he otherwise would have woken up. Given that vacation bedtimes tend to be later than usual, we appreciated his ability to get extra sleep.
Also, while the Metra train is really nearby, we discovered that the #6 bus is a half-block away and runs every 15 minutes toward downtown, including the Museum of Science & Industry and the Museum Campus (with the Field Museum, Shedd Aquarium, and Adler Planetarium). The trip to the 3 museums is just about 1/2 hour because it is an express bus for most of the drive. (Google Maps can help you find the bus stop and arrival times.) Rather than dealing with correct change, I set up my phone with Google Pay and could pay for all three of us. A great discovery! Another great discovery was the SpotHero app for finding cheaper parking downtown.