Serena is an amazing host! She was very helpful and very interesting person to talk with.
The house was easy to find, because she gave us clear instructions.
It was very clean in our room and in bathroom. And the house is located in a very quiet area (Approximately 10-15 minutes to Harvard University), we really loved that place, very good infrastructure and places with tasty food.
With a great pleasure we will come there again when will be in Cambridge!