I made the booking late (the day before) and Paul was quick to respond and answer a couple of questions I had about good places to eat in the area. The flat was clean and just what I expected from the description and photos, in a good location for Havard/MIT (walk) but also Boston with the T red-line.
The contact with Daniela (a friend of Paul's who helps run the airbnb; Paul was out of town) was minimal, we met to get the keys and she left abruptly — I guess she was late for something. The flat is really well covered with tea/coffee tv, wifi and toiletries so there was no problem orientating ourselves around the flat despite this.