I absolutely loved Steffi's place! I didn't want to leave. There is a super cute neighborhood nearby (Andersonville) and I found myself staying in that area most of my trip instead of going downtown like I had planned. If you do want to go downtown, though, the Red Line is just a few blocks away. I also walked to the beach, which is a bit of a longer walk, but it was really enjoyable.
The space itself is just wonderful. It's very comfortable but it didn't feel like I was invading someone else's space (like some other airbnbs.)