Carolina's place is very comfortable, with a superb view. You get a comfy bed, dresser, lots of towels, big desk with printer, and filtered water. Her place is very well-located in the Longwood Medical Area. Walking distance to the T, a "river"side path if you're a runner, plenty of amenities.
Communication was easy. I didn't see her much, but we had a nice conversation. She was even cool with me shipping business cards to her place for my conference, and she brought them up from the mail room for me.
I'd definitely stay again if I had a conference in this area.