Decently big 1 bed 1 bath in the basement of the house. Pretty quiet neighborhood and I felt safe during my stay. The place is pretty clean too.
There's a boba and bbq place (Supreme BBQ - AunTea Boba) on the same block and the drinks are pretty good. Can't say for the bbq however.
You don't need a car if you're mostly exploring the areas around the national mall. Probably better to be without a car since parking is tough. There's plenty of scooters and bikes around to use. Uber and Lyft are abundant as well.