Let me make this very simple for you: If your desired visit dates are open, just book it! If you're on the fence, just jump on down off that fence and book it. You won't regret it! Jim's place exceeded our expectations in every way, and Jim is a fantastic host! Best airbnb experience we have ever had, and we've had some really good ones.
* Great neighborhood: diverse, quality dining options; safe and secure - even comes with it's own police station just down the street; extremely convenient metro access; easy walk to the capitol, library of congress, east end of the mall, etc.
* Excellent apartment: nice floor plan; spotless; updated; comfortable
* Best host: seriously - these hosts have thought of everything! Umbrellas, bike helmets, all kinds of hot beverage options, rain ponchos, maps, guides, nice soaps/shampoo/conditioner, iron, clothes steamer, baby bed, books, and on and on. And lighting-quick communication. Oh, and just really nice people.
Next time we're back in DC, I sincerely hope Jim's place is available!