I stayed Carolina's house for 4days. Her house is really clean and very safe. there are three door lock to get in my room, so I didn't need to worry about my safe.
And there are bus stop near her house just 1-2 minutes away, (I heard that there are subway station as well near house, but I took the bus during my stay.) so it was very convenient to go to many visiting site in Washington D.C. Additionally, her house was very roomy for me, and especially bathroom was really clean and it was like hotel's bathroom. Besides, she allowed me to keep my luggage after check out, and there are two security cemera in hallway, so I could keep my luggage with confidence.
Lastly, there are portable charger for every type (for i-phone, c-type, ...) becide the bed.
I really enjoyed my travel in Washington D.C, with Carolina's perfect house. Thank you Carolina.