We stayed in the carriage house for a week with five people. I would recommend a smaller group for a shorter amount of time. However, more spacious and accommodating than a hotel at a much better price!
Pros
Beautiful old neighborhood which felt very safe
Low cost
Clean
Very responsive hosts
Off street free parking
Cons
No oven, there is an electric double burner to plug in for stove top cooking.
Laundry, if you stay for more than a couple days you will need to arrange for pick up and drop off of new towels.
15 minute walk to metro.