The apartment is beautiful and similar to it's pictures. We found the apartment to have most everything we could need. We cooked several meals in the kitchen, and found it to be exceptionally well appointed. The furnishing was modern and was the same as pictured. All of the appliances worked well, including the washer. The bed was a bit stiff, but it was good for my mother's back. The historic nature of the apartment was amazing, and the location unbeatable.
However, there were a few things about the apartment that should be noted. The wifi did not reach the bed in the bedroom on any of our devices. Perhaps the most notable thing was that tour groups use the courtyard as a stop for their tours all day from about 9am to 8:30pm. Even our own tour of Edinburgh castle stopped in the courtyard. These tours can easily be heard from the apartment. Some of the tours are quite theatrical, one notable recurring one involved shouting and hitting a large stick against something to make a sound effect. The first time we heard it, it was actually quite scary. If you're planning to be out of the apartment during the day time, this shouldn't bother you.