I had a very nice stay with Carrie and Brad. I spent a weekend there, so I had the downstairs to myself. Met Brad on Monday and found him to be very friendly. The place is clean, quiet, well-situated, and accurately described.
Pros: great neighborhood, with coffee shops, bars, and the L in walking distance. The room is comfy and clean. Hosts are responsive, straightforward, and nice.
Cons: as the hosts describe, the floor is a commercial space during weekly office hours. I wouldn't hang out here during the day.