Although I did not get the opportunity to meet Dennis, he would answer my questions via AirBnB and was accommodating with my visit. I got the chance to meet his brother, who was incredibly helpful and friendly. The room was exactly what I was looking for: something that was reasonably priced, accessible via public transportation, and relatively close to the National Mall. I was in town to work at the Smithsonian Natural History Museum, so I really didn't need anything fancy because I'd only be using it to sleep for the most part. The room was clean, had a nice dresser and lots of shelves to put my things. There was plenty of space in the fridge and the kitchen was very well kept. The Waterfront Metro station was only about a 10 min walk away, and there's a Safeway right next door so you can pick up groceries or hang out at Starbucks. I loved that his place is about a 20 min walk to the Fish Market (really great food there!), and most of it is along Lakeshore Drive, so you get to see a really pretty view. There is a police station about a 5 min walk away, so I always felt safe (granted, I didn't go walking around after 9pm). There are some bus stops that are only about a block away too. The area stayed pretty quiet too, which was nice. Definitely a great place to stay when you're in town!