Overall we enjoyed our stay at KASA at 900 S Clark in Chicago.
Pros:
Beautiful high floor apartment with big windows and beautiful views
Very well appointed stocked with coffee pods, laundry stuff, etc
Very communicative and responsive staff
Toilet leaking and broken coffee maker fixed in 1 day—things like this happen and the speed of repair was impressive
Parking very convenient
Central location in South Loop
Comfortable beds
Roku nice touch
Cons:
The main issue was during check in—a paper parking pass was missing from the room. We thus could not park in the garage. It was very unclear from otherwise very clear directions that we could not park without a piece of paper stating our check out date. I therefore had to park at nearby garage—really inconvenient given that we were driving for so long. It was reimbursed rapidly though. Had to call again the next day to finally have it delivered.