Capitol Park Towers only got two stars on apartmentratings.com… the rent is too damn high in DC so if it seems too good to be true there might be a reason.
I’m glad you seem to be resisting the urge to move to Virginia 😉 There’s nothing wrong with Virginia but you might as well experience DC and you can always flee to the suburbs in a year if you hate it!
There also isn’t too much going on social-wise in southwest. It tends to be quiet (which you said you might like) but it’s very residential and not a lot of restaurant (etc) development.
Lafayette Square is a great work location. I’m envious!