This is a cute, small basement apartment relatively close to shops and if you want to explore DC by foot it is located on a main road you can follow down to most attractions.
My biggest negative would be that because it is a basement apartment and uses AC to heat up, the place cools down rather fast so definitely smth to consider if you are visiting in the winter. The other point would be that in a closet section there seems to be a water heater that (understandably) makes a lot of noise so if you are sensitive to those things, smth to consider. For us…we spent most of the day outside so it wasn’t that big of a deal but it did get annoying at times. Everything else was pretty nice