Location is great and host is fast to respond. Had a great time stopping in halfway through the freedom trail to take a break.
You'll hear everything your upstairs or downstairs neighbors do because the floor creaks and walls are thin. That's not necessarily bad if they go to bed at a reasonable time.
The bed frame is really noisy and needs replacing, we ended up putting the matress on the floor.
We got really lucky that 5 out of 6 nights we had "quiet" neighbors (as in they didn't walk around and slept at night). The first night the furnace would click really loud, so we bought ear plugs and that helped. The last night, some new people came and walked around and woke us up even with ear plugs in. We ended up just leaving way earlier than expected to the airport because it was hard to fall back asleep.
Overall, the trip was great and we had a great time.