Clean, modern and well configured, this property was very pleasant during my 5 night stay. The wifi was almost always fast and responsive (and supported VPN), and the use of two Apple TVs made it trivial to watch Amazon Prime from my iPhone on one of the evenings. The bathroom is particularly well organised with a spacious shower.
The immediate street was quiet and safe, and the area makes the property well located for restaurants in Mount Pleasant and Colombia Heights — e.g. Bad Saint — and the neighbourhood bars in Mount Pleasant such as Marx Cafe. Typical off peak fares to the mall were ~$4-6 for an Uber Pool, and $8-9 for an UberX. An UberX to Dulles was approximately $60.
I didn't meet Jenny during my stay but had no problems checking in and out via the convenient lockbox.
I never needed to use the heating or air conditioning but several controls were available should I have needed to tweak it.
I paid £606 for my 5 night stay which seemed competitive, particularly given the level to which it is furnished.
I would not hesitate to recommend the property, or to stay again in future.