Cinderella's place is lovely and comfortable. The room set up is cozy yet also spacious; beautiful bathroom, modern yet warm decor all around.
I was going in to the Capitol area everyday and used a mix of Lyft and the Metro, both of which were easy as described. I did end up spending more than I expected for all of the transportation. I could have saved more by using the Metro exclusively, though unfamiliar with the area and how long it would take me to get from place to place, I used Lyft. So the only note I would say for those visiting the DC area for the first time is to know that you can't just pop back to her place for an hour or so rest; it's at least 1/2 hour transport. I biked back one day on the Capitol bikes, and that was fun and easy, though it took an hour. Loved the exercise though :)
Overall, it was a great place to stay for my needs as one person on a work related trip.