The building is lovely and in a good location - right across from the Museum of Science and Industry, and handy for a few buses that go downtown, and also for the Metra ME line. We found free parking around the block and were able to leave the car there all week and get around by public transport. (We got ventra cards at Cornell Dollar Plus around the block - handy little store, but cash only.)
Also, there is a restaurant downstairs in the building where we ate dinner one night. Best spaghetti and meatballs either of us ever had at a restaurant. The building staff were great when we interacted with them, and there is a pay laundry room next to the unit, which came in useful during our week-long stay. $1.75 each for wash/45 minutes dry.
There are cleanliness/upkeep issues with the unit itself, though. The floors badly needed moping when we were there. Hopefully they have already done something about that. As others have mentioned, the AC is loud, the couch is ripped (which I could forgive if it was comfortable, but it is *not*), and the record player shown in the pictures is not there anymore. The kitchen was mostly adequate, but did not have a can opener, which we didn't realize until after we had a can to open. Also if you plan on baking anything be warned that there are only two small baking sheets, both smaller than a sheet of paper, I would say. The spoons are mostly tiny, so any soup-lovers should bring their own spoons. :-p