I came to Cambridge for a conference, and I'm very happy I stayed at Jenny's house. It was a clean room, comfortable bed, and a great location in a nice neighborhood near the conference hotel. Jenny was very nice, and the breakfast food was a nice touch. I worked at the house for a half day, and the internet was fast and reliable in the basement (though a bit patchy on the porch if you want to work outside). The only caveat I would have for those considering this room is the basement bathroom ceiling is a bit low (I'm about 5'10 and it was totally fine for me, but if you were above six foot or above it would be an uncomfortable shower). This airbnb posting is highly recommended!