My girlfriend and I visited Chicago for three days and Jonathan's place was perfect for our stay. It was clean and cozy and had all the necessary amenities to make our time there very comfortable. Although we did not use the kitchen, it is fully equipped, and the bathroom is very spacious with a nice big shower. If you are very tall, the low ceilings may be an issue, but I am 6'-1" and I only had to duck my head slightly where the cross beam is between the couch and the bed. The ceiling was plenty high everywhere else so it was not an inconvenience. It got a little chilly in the evenings before the heat came on (it is controlled from upstairs) but the space heater was helpful, and we could have asked them to turn the heat on if it had really bothered us.
The location is great. The neighborhood itself is very clean and quiet despite being only a 5-10 minute walk to the main drag where there are a lot of restaurants, bars, breweries, and shops. There is a bus stop right at the end of street and the train is under 10 minutes away on foot as well. Communication was quick and easy. We would definitely stay here again!