This is an awesome airbnb-- my favorite of the ones I've stayed in so far! I stayed here for two nights on my own, in order to visit a program at Harvard.
The location is excellent. It's a 2 to 10 minute walk to any part of campus, depending on where you're going. There are delicious restaurants and cute shops about 8 minutes away, but the airbnb itself is in a quiet residential location. I woke up to bird songs in the morning, it was really nice! It's also easy to find, which is good if you're using a ride sharing service. It's close to the Harvard subway station as well (about a 10 minute walk, easy even with bags). For dinner one night, I had ramen at a lovely place a few blocks away called Santouka Hokkaido Ramen, which I reccommend.
The apartment itself is wonderfully cozy, and is made even better by the charming host! Joyce was so friendly and helpful throughout my stay. She really made me feel at home.
I was given a lovely, exceptionally clean room with a big, cozy bed, a spot to hang my clothes, and plenty of desk space to work. When it got colder at night, I especially appreciated the radiator and the thick comforter on the bed. I was very comfortable!
The airbnb is a shared apartment, so like most bed and breakfast set-ups, it operated with a shared kitchen. There were several options for breakfast, including cereal, toast, eggs, fruit, pastries, and yogurt.
I was also given my own private bathroom, which was similarly impeccably clean and stocked with some soap and shampoo/conditioner.
Checkin was easy, as was checkout. It's also a 20 minute drive to the airport (maybe more in traffic though), which was great.
The only thing I can think of to warn against is that the airbnb is up one flight of stairs, so if you have any serious mobility constraints, that might be a bit of a challenge. certainly no problem for me personally, though.
This airbnb was definitely a much better deal than the more expensive hotels in the area. It was also great to have such a sweet and helpful host. She made sure I was appropriately dressed for the cold weather (which I really appreciated as soon as I got outside), recommended good places to eat, and generally just made sure I had everything I needed. All around I had a great stay-- I cannot recommend this place enough! If I come back through Cambridge, I'll definitely stay here again.