Not great for sleeping, but overall pretty good. The hosts were great! Here's the details:
Location: Short walk to the L, coffee shops, the French Market. Great!
Noisy: The L right outside the window. We brought earplugs, but it was still difficult to sleep. The dishwasher, the heat & a/c, and the washing machine were all LOUD. It's like being inside a box; very little to absorb the sound with the sparse decorating, so everything seemed ultra loud.
Furniture: The bed was super comfortable, no complaints. The couch in the living room was TINY. The table and chairs in the kitchen were so lightweight we had a hard time using them.
If you're in Chicago to be out, not to rest and relax, this might be a good space for you.