Everything is as described. I didn't meet John but he promptly replied to all my messages. it's a bargain for the location (30 min walk to Harvard/MIT campuses) and local restaurants are within few blocks if you don't fancy going to Boston for dinner. Also, the neighborhood seemed safe (I was traveling alone and walked home safely around 22:30 on a Friday night). my room was a bit noisy cause it had a window on the street, and on Friday evening the nearby club's speakers (karaoke night!) but nothing unbearable, and only until 23:00ish. you can lock the door with the provided key, although I didn't try my luck and didn't leave any valuable while I wasn't there. I reckon the house was fully booked, but didn't have interactions with the other people. definitely recommend the place and will be coming back too, if the chance arises. thanks!