I think I was one of the first guests to stay in this unit, so there were a few kinks at first, but Marty was always quick to respond and make sure any issues were resolved. (I stayed for a little over 2 months.) The biggest issue was with the temperature of the unit--as an attic unit, it was collecting all the heat from the rest of the building and getting upwards of 90 degrees (overpowering the small window AC unit in the bedroom). Once I told Marty, he installed another AC unit right away (also in the bedroom) and had offered to find a way to install another at the other end of the unit for more even cooling. He really is committed to making sure guests have a pleasant stay!
The apartment is a little further away from Logan Square than I thought it would be (more Avondale than Logan even if it is still technically Logan); the 20 minute walk to the Logan Square L stop meant I didn't end up spending as much time there as I had hoped, but the Belmont stop was only about 15 minutes away (and shorter if you Divvy bike there from the station that's about 5 mins away). Heads up though, the Belmont stop was under construction for the last part of my stay and O'Hare-bound trains didn't stop there, so future guests might want to double-check.
Otherwise the apartment is quiet, private, and a perfect place to retreat to at the end of a long day. Having an in-unit washer/dryer was also super helpful since I was staying for so long. Thanks for everything, Marty!