Lovely place. It is very well decorated and there is more than enough room for 2 people.
The only downsides would be the 7 flights of stairs that you must climb to get to the apartment. And as two women traveling, we did not find the neighborhood very safe. We both were harassed on the street. But the location is great if you don't plan on staying in the neighborhood because of its proximity to the metro and the apartment itself is beautiful.
Stephen was so helpful on our trip and always responded quickly. We both forgot to bring any US->EUR chargers and adaptors and he gave us recommendations on where to go to purchase them. As well, he gave us some awesome spots to go out on our last night and we had a wonderful time.