We arrived and received the keys from Roupen, the owner, who was just downstairs at the restaurant (amazing Armenian food, btw), and he showed us the place. It was clean, the refrigerator was stocked, lots of clean towels, and so convenient to the Miracle Mile's shopping, and unique Chicago architecture. The conference we were attending at the Marriott just across the block kept us pretty busy, but it was so nice to have a cozy little apartment with all the comforts of home to relax in after a long day of meetings.
It was just a short walk south on Mighican Ave to the Millennium Park, the art museums, the big glass "bean" sculpture. But I found the CAT (subway) affordable and easy to use. Only $5.00 to ride the train all the way from downtown to the airport (as opposed to $65 for a taxi or $26 for uber).
We figured out the tv system pretty well, we found the street noise tolerable, and with the window a/c units as white noise makers we slept great!
One thing to be prepared for in the heart of any large world class city like Chicago are beggars/panhandlers. I never felt unsafe, but I was approached daily by very bold people asking for help. They all seemed to really need it, with their hard luck stories, so be prepared to deal with that.