Originally Posted by GrizShel

Not in DC, but the Pentagon City RI is very convenient also.

Don't know if they have any room upgrades available at the Residence Inn Arlington Pentagon City, I can't even remember seeing any 2-bedroon suites bookable, but maybe there are some.

What I like about it -
It's less than a five minute walk to the Pentagon City metro station which takes you across the river to L'Enfant Plaza and other DC destinations in about 3 minutes. There's also a very good selection of shopping and restaurants (Fashion Center at Pentagon City mall included) within easy walking distance and abundant free street parking on weekends.