The house and room is very clean and the atmosphere is very nice. The location is nice, very close to Charles river.
The only complaint I do have is regarding the communication: While I received a large amount of automatic messages before and during my stay, I could not reach the hosts when I really needed them: I locked myself out of my room because I did not know that I would need the code every time I would access the room. I couldn't reach anyone at the office for over three hours (7-10am), which was very stressful. So be careful to remember the room key! :)