I must say that the place was really great. House and room are just like in the pictures, everything worked fine and Gosia and I got along perfectly well.
The house is in 5 min walking distance from a bus station where two lines will bring you directly to Harvard Square (i.e. Harvard University). On top, just 400m away from the house was Fresh Pond, a super nice running location. For my Research Visit, the place was pretty much perfect. All in all it wasnt the cheapest room I've ever rented, but it was worth it!

I recommend Gosia's house and am looking forward to coming back one day.