Great host, great house, great location!
Jenny's house is in walking distance of MIT campus and lots of good restaurants. From Lechmere station, you can get to downtown boston within minutes (via MBTA / green line). Jenny is super-friendly and made us feel welcome. Not only did she provide breakfast (english muffins, toast and cereal) but gave us some usefull recommendations too. Plus she has a sweet cat and dog living in the house with her.
The bedroom is nice with a comfy bed and lots of space to put your stuff. A spacious and very clean private bathroom is located across the hallway.