My husband and I stayed at Jason's place for a visit to DC with my parents. Overall, the convenience of the location and the 2 bed/2 bath situation made it a decent value compared to the price of other Airbnbs in the DC area. Jason was also a good communicator and quick to get back to us. We used Uber/Lyft to get around and because of the location, we never paid more than $15 per ride which was nice.
The stay could have been improved by making sure there were functioning lights in all rooms (all but one lightbulb was burned out in the kitchen, the ceiling light in the big en suite bedroom was burned out so the only light was from rickety floor lamps that were constantly about to tip over) and more thorough cleaning (there were popcorn kernels in a bunch of nooks and crannies in the en suite bedroom). If you're sensitive to temperature, note that the heat/AC is remotely controlled by Jason - there is no thermostat for you to control so you have to message him to have it changed.