The apartment is lovely and well-appointed, and in a rapidly gentrifying area moments from H St. Robert was a gracious host, who was quick to respond to inquiries.
We think it is worth noting that the spiral staircase entry could be a bit of a challenge. We very much appreciated Robert's offer to help with luggage, though we were able to manage. If guests are at all large/heavy, not in decent physical shape, or have physical limitations that may impact walking/climbing, the three-floor outdoor walk-up could be a dealbreaker.
Finally, during our stay, there was construction going on directly across the alley from the bedroom, including loud music starting each morning before 8am. Might or might not be an issue, depending on your daily patterns. Not Robert's fault, but worth knowing as a prospective guest.