This is a very cool house with a very cool history. We were a group of 7 and had ample room for hanging out on the deck or inside at the kitchen bar. The bathroom shower upstairs didn't work (in fact, the plumber showed up the day we checked out), but that didn't affect us too much, as there is an outdoor shower with running hot/cold water, plus a small bathroom on the first floor.
There were bikes available, which was a great surprise, as they weren't listed in the amenities (but the tires will probably need inflating). Carts are available for getting your items to the house from the ferry, but the one we had had a flat tire, making the pull a little difficult.
My husband and I stayed in the upstairs queen room and were very comfortable. My sister and her husband stayed in the room off the downstairs deck and mentioned that it was quite humid and a little dank smelling, even with the air on.
Overall, it was a really great time on Fire Isalnd, good location, and this house has inspired us to find other architectural gems to stay in while on vacation.