This was a great stay in Chicago! There are pros and cons to consider, but overall I would definitely stay here again.
Pros: very nice space aesthetically, comfortable accomodations, washer and dryer with detergent included is great for packing light, well equipped kitchen with dishwasher, very close to public transport, and a great walkable area of downtown.
Cons: as others have mentioned this spot is RIGHT next to the L. I think from the bedroom the noise is more of a soft rumble, but I shared the space with others so I slept in the living room and from that Murphy bed it was very loud. Also the Roosevelt station area was definitely less safe at night. We kept north of that area for the most part. Last issue is the check-in process was confusing and due to some incorrect info we were locked out at first but Tony replied within 15 minutes and got us the correct info. I believe he is updating the automated email system so that should be fixed in the future.