There is two big rooms and one box room in the apartment. Small apartment but relatively spacious with nice living room.
The noisy may be an issue if you are sensitive to it.
Be aware to top up around 14.5% of Airbnb payment to the host and this is extra.
Around 25-30 mins walk to Harvard Law school or Harvard square. Few buses is running to it.
In all, nice stay in Cambridge Boston.