Rubani's apartment is neat, clean, and comfortable. Rubani himself is a wonderful host, helpful and explanatory. The neighborhood is mostly quiet day and night except for the occasional EL train, which is not heard loudly through the sound-limiting windows and doors.
The location is working class and shows the evidence of prior urban decay, but it is clearly on the way back. We felt completely safe in the daytime; I felt safe at night too, though my (female) companion felt safe at night only when with me. The Kedzie station on the Green Line of the EL is a block and a half away, providing quick access to downtown; the 94 bus going north up California Street towards Humboldt Park and beyond is a block away, from which you can transfer to a bus going, e.g., to Oak Park, the famous locale of many Frank Lloyd Wright homes, or to Old Town where Zanie's and Second City comedy clubs are located.
We definitely would enjoy another visit to Rubani's castle.