Marlene is indeed a Super Host!! Her place is IMMACULATE! It's like a cool little boutique hotel with 3 individual suites, right behind her house. There's a convenient common area to make coffee, get water (with a Brita filter on the faucet), microwave, etc. She's thought of EVERYTHING, so you can relax and be confident that all will be terrific during your stay!
The area is close to Harvard and there is a lovely park right behind her house on the way, if you're walking there - (Swissbaker is on the way, too, for breakfast treats.) At Harvard there are lots of restaurants and places to shop, and you can get the subway to downtown, or wherever you want to go. And, if you have a car, there's a private parking pad right at Marlene's.