This is a wonderful little nook to curl up in if you are in Boston on a budget. The room is exactly as described: small and cozy, but with all the necessities (and a few extra comforts). There is some noise from the highway right outside the window, but not nearly as much as I would have expected; I didn't find it particularly bothersome and could imagine that some might even find it soothing.
The location is also super convenient: it is less than a 5 minute walk from the blue line, and you can even walk directly to/from the airport! (I did.)
The common areas are well maintained and have a homey feel, and the hosts are lovely people. Overall, staying in this room felt like being in a dorm room (in the best way possible) with an extra dash of personable warmth. I'll definitely consider staying here again next time I am in Boston.