Isaac's apartment was beautiful, very clean, and extremely comfortable! In this past weekend's cold weather, our bedroom had a heavy duvet that kept us warm through the nights. The apartment was beautiful, spacious and we had a bedroom and bathroom all to ourselves. The wifi was also immediately accessed and very fast.
I would definitely recommend staying at Isaac's apartment if you're looking to explore in the center of the city. When we arrived, Isaac's girlfriend came down immediately to greet us and hand us the keys. It was a smooth process and he is responsive through Airbnb messages.
As for the location, it is only a few blocks from the Red line, which will take you south to north of the city. The neighborhood in which Isaac and his girlfriend live is safe, close to the city center and walkable to Millenium Park, which is where Anish Kapoor's sculpture sits. In the mornings, my boyfriend and I will walk just a couple of blocks to eat breakfast/brunch at Yolk (simply amazing!!).