We had a really nice time staying at Ami’s place in Adams Morgan.
The good: the location is excellent, right next to the main strip of shops, restaurants, and bars of Adams Morgan. We walked everywhere - to a conference at the Marriott Wardman Park (about 20 min), the metro (about 15 min), and even the National Mall (a bit under 1 hr). It was reasonably quiet while we were there. The apartment has a full kitchen, bathroom and laundry, for a lot less than an equivalent hotel. Ami was very friendly, knowledgeable, and available.
The bad: the unit is not new, luxurious, or updated, which I think is accurately described in the listing. It’s not perfectly clean and tidy - for example the tub floor is a bit gray rather than sparkly clean white, and there are piles of books around.
As long as you have the right expectations (not a hotel!) it’s a great option. I would happily return for a future trip to DC.