My friend and I went to DC for Otakon 2021 and for that Amir's place was a great place to stay. He had amazing recommendations for coffee and restaurants too that were all in walking distance. The location has everything you will need.
The only downside is that every morning 7AM including weekends a child starts running very loudly nonstop in the floor above. One morning they even knocked on the door to the bedroom for a while until their parent came and got them. We are morning folks so it didn't affect us too much.
I'd recommend Amir's place 110%, especially if you're a morning person!