Alex place is great to visit Washington DC. It takes 20 min from there to Capitol by walk, and it is quite fine for a walking travel city like Washington DC. The place is also about 20 min by walk to the Union station, and about 10 min to the nearest subway. I strongly recommend you Alex place. Furthermore, his place is really clean, spacious, and well-equipped, you will find whatever you want :D. Check-in and out is super easy with pass-code in the front door.