Let me just start off by saying BOOK IT!!!
The apartment is great, modern with an old world feel. I am always nervous about the cleanliness of an apartment when I am traveling and I will say this place was spotless! It is just a ten minute or less walk from Edinburgh waverly train station and a little further to the royal mile and the castle. I took the tram once while I was there but outside that, I never felt the need to take public transportation. The bedrooms face a courtyard and not the street so you do not get any street noise and it is very quiet and good for sleeping. The beds were comfortable and I slept well. Kitchen was nice and clean and they left us some tea that was very good, I even found the same tea to buy for myself! Glenda let us in and gave us a pint of milk for the tea. She was very friendly and gave us some tips for the city. Check out Arthur's seat, it gives you great views of Edinburgh and the sea. Can't say enough good things about the apartment. Will definitely stay again!