Cant agree more with the other comments. It does have an excellent location. It's in a rather quiet, pleasant neighborhood. Groceries and the subway are just 10-15mins walk away. If you worry about it not being located right in Boston, it's not an issue because its nearest subway station can take you there in 20mins. Or if you want to go to Harvard, it's one station away from their area.
The house is old but it is clean and functional. You have the whole 2nd floor and it's pretty much like having your own home. It has everything you need that you don't share with anybody there: your own microwave, utensils, plates, dining table, porch, bathroom, what have you.
Best of all Paul is a very good host. He's such a pro at doing airbnb. He knows and has what guests would need from house items to boston/cambridge guide maps. Also very knowledgeable about what you're looking for in his area. We definitely got the best value for the money we paid for our rent. Will recommend