Third floor unit, but NO ELEVATOR. Ken, the host, was very nice and helped me to take my luggage to the third floor. NO early luggage drop available for free, only paid. They didn't help me storing my luggage the day of my flight. The restroom was a bit dirty, the trash can was full of toilet paper almost every day. The location was pretty good, walking distance from china town, Starbucks, and nice parks . Very convenient for Back Bay Station (MBTA).