I absolutely loved my stay at Hermina's place. The room that my family and I stayed in was huge - it was the entire floor space of the house's attic. There were two larger beds, one smaller bed, and a futon. For being so hot outside, I expected the room to be uncomfortably warm, but it was surprising cool and had a box fan as well.
The location of the house itself was very convenient: right around the corner from the Red Line train stop and across the street from many stores. The neighborhood is quite nice and only a 20-minute train ride from the heart of Boston.
I recommend this room for larger groups (4-6 people).