Isaac's apartment was my first airbnb experience, and it couldn't have been better. His communication was beyond excellent. He responded in depth and quickly, and went out of his way to make sure all the instructions were clear and even gave suggestions for things to do and where to eat. You can definitely tell he's used to hosting with airbnb, because it was such a smooth process.
The basement apartment itself was wonderful. It's very easy to access the metro from (about 5minute walk) and it's a 10 minute walk to the beautiful Capitol which lights up at night and is gorgeous for nighttime walks. The neighborhood is one of the safest I came across in DC. Being so close to the federal buildings, there are policemen near and as a young woman in DC, I felt particularly safe on Capitol Hill.
The apartment is comfortable and has all the necessities. I stayed there with two friends for a month, and we more than survived using the microwave and plug-in hot plates. The size of the fridge is helpful for a long stay, and the TV is surprisingly big and can do everything from play music on your ipod to play movies from your computer.
As someone who has stayed in the apartment for a month, I'd be happy to answer questions you might have from a guest's perspective. I have only good things to say. It was such a positive first experience of airbnb that I know I'll be using airbnb much more in the future.