Manuela's place is just as described. I had a clean and spacious room with a bathroom and kitchen shared with one other person who I only saw once during my stay. The bed is comfortable, wifi is fast, the train station (red line) literally a few steps from the house. So the perfect place for my stay, as I was in Boston for a conference and just needed a good sleep, fast wifi and public transport possibilities.
Manuela is also a very nice person, she replies instantly on questions over mail and text message. She gave me a map and a lot of tips on where to go etc and even invited me to join her to a reception on my first evening there! Definitely recommend to stay here.