Great experience overall. Fantastic location! Just off of the grounds of the capital, small conventional grocery/sandwich shop across the street, trendy small neighborhood grocery a couple of blocks away, a few blocks to Union Station (metro, food, train), few blocks to cute neighborhood coffee shop, five or six blocks to H St. Corridor restaurants. Neighborhood nice/upscale/safe--felt comfortable walking around after dark as a family (3 teens).
Apartment clean, up-to-date, Ikea-like furnishings, comfortable beds. Full amenities (refrigerator, stove, dishwasher, washer/dryer, microwave). Bathroom small, tough to share, but nicely furnished.
A little worried about parking at first--closest garage ~ 5 blocks away. However, very easy to drop off/pick up suitcases (street quiet/residential), and garage cheap/clean in a new facility so didn't end up being a big deal at all.
Communication with owners digitally only, which worked out fine. Information sent prior to and at the apartment straightforward, complete and helpful.