Great place to stay! This was our home away from home for 5 nights for my myself, my wife and my 15 year old while we explored DC. You can't beat the location - you are about a 2 minute walk from a CVS and a couple more for a very nice Whole Foods and a Starbucks Signing Store (staffed only by deaf employees who will steal your heart after a few days). Walking from the AirBnB to any of these places, you will pass all walks of life - schoolkids, young moms strolling their babies, guys in suits biking to work, rich people, poor people, hipsters, and ghetto - but we never felt unsafe no matter the time of day. We fell in love with the neighborhood!
The room itself has a cozy living area with a large TV and Roku and a kitchen area with everything you might need to help make your stay in DC a bit more affordable. You are one block away from a bus stop and a tram stop (the tram is free currently), both of which can get you to Union Station and the Metro pretty quickly (as well as other locations), although you can walk straight out the door of the AirBnB, past the school across the street and be at Union Station by foot in about 10 minutes (we did Uber from Union Station once when it was raining and it was $5). We like to walk and you can walk out of the front of Union Station and be at the Capitol in a few more minutes. We walked ALOT, but the subway system is pretty easy to master and by far the nicest, cleanest subway system I have used.
All in all, you can't beat the location, price and hospitality. We look forward to staying there again sometime.