Camila's flat is in a great area (the bus from Irving Park either on the blue or on the brown line will take you one block away from her flat: get off the bus at Kimball), and walking to Kedzie station (brown line) you'll stumble on a great breakfast place on Montrose.
She let us store our luggage in the appartment, which was great for us, to walk around town.
The flat seems comfortable, but we did not really get to know it as Camila and her flatmates (understandably) seemed to need to chill out among themselves after a tough week at work… The good thing about Chicago is you'll have lots of things to do so in order not to feel claustrophobic in a little bedroom.