My 2 friends and I stayed at Karen's place during our trip to DC. It's an ideal spot for exploring the Capitol during the day and being comfortable in the evening. Karen is an amazing host that made sure I was well taken care of before and during the trip. The descriptions matched exactly what I got.
I worked from home during the day and Zoom calls and internet worked well. The place is a basement unit, but there is light and it did not feel tight at all during the time there. My only regret is not booking more time at Karen's place! There's so much to enjoy in the area and definitely recommend you try it out.