What a great spot! Walter's place is a classic Chicago apartment on a quiet street. It's a quick walk from tons of great spots with easy access to transit, which was perfect for us. We didn't have a car but street parking looked easy.
The apartment itself is super clean, well decorated (we loved the information about the artwork in the guestbook!), and had everything we needed for a lovely stay, including a great selection of tea and some delicious snacks. Beds were also very comfortable - we slept very well and didn't notice any street noise. You'll probably hear some footsteps above you, but we expect that in an apartment and it didn’t bother us at all.
We were working remotely for a few days; internet was good and we had plenty of space to spread out. Highly recommended if you're looking for a neighborhood spot to stay in Chicago - we would happily stay again!