What a lovely and convenient place to stay! It's about a 5-minute walk from Harvard Law School and about 10 minutes from Harvard Square and Porter Square. You can take the Silver and Red Lines for free from the airport, and it's only $2.75 to get back to the airport via the T.
The neighborhood is green and quiet, and there are lots of nice restaurants, great ice cream and coffee, and cute shops just a block and a half away on Mass Ave.
My cozy top-floor bedroom had a lovely skylight, comfortable bed, and a good desk with a proper work chair. The WiFi was excellent.
Connie was a friendly and gracious host. She provided ample and tasty food for breakfast and snacks.
I would definitely plan to stay there again the next time I'm in Cambridge.