If you're on a budget, Washington Green Room is an unbeatable value. The location was accessible via the Green Line (Kedzie station) to/from downtown Chicago. The house has a hostel-like environment, with communal kitchen, common areas, and shared bathrooms. Be sure to read the entire listing to note the details about the neighborhood. I didn't feel unsafe but as a solo female traveler I have to admit that the walk from the station to the house (5 min) after dark was a tad sketchy.