We had a great time staying at this Airbnb.
It was located in a pretty safe and quiet area and about 30 minutes walk from where the tourist spots begin - would definitely recommend the Capitol bikeshare bikes though as there is a drop off point conveniently close to the studio.
The studio itself was a little noisy with the fridge going and the pipes rattling constantly but that has been our experience with most studios we've stayed at, and with enough time it should just become white noise.
We did also have a problem on our last day of our stay when a realtor came and knocked on our door at 9am to check out the place and this wasn't communicated at all with us. Luckily we were about to check out early to catch a train so we were all packed, but in any other situation that would've been a bit of a privacy issue.
Aside from that, we had a great time in Washington and are grateful to be hosted at this Airbnb.