This is a lovely basement apartment with comfortable accommodations. The space is very clean and bright with a nice window at street level. The bed and linens were comfortable for a good night's sleep in D.C. We did not meet Xiaozhen but had good communications with her. The parking spot is very helpful when visiting D.C. as parking can be quite expensive. As other people have said, the space is small but perfect for a couple or two close friends. The bathroom has a glass door so, if you are in the livingroom/kitchen space, you can see whatever is happening in there. I was with my daughter so it was not a big deal for us. The temperature controls are not in the apartment but Xiaozhen quickly adjusted the A/C as soon as we asked about it. She was also kind enough to allow us to leave our car parked after check out in order to go sightseeing.
The only drawbacks of this Air BnB are the noises that you can hear above you. Since you are in a family home you can hear very clearly sounds of people talking, walking around and doing dishes. The other is that the property is a bit of a walk into the heart of Georgetown- it took us about 25 minutes. Uber can get expensive and the public bus will require you to transfer if headed downtown so plan accordingly.
We had an all around nice stay. The neighborhood that the house is located in is quaint with lush greenery and quiet streets. There is a grocery store and small business/restaurant district nearby.