Location was amazing, every attraction is within a short few minutes walk. There were pubs, restaurants right below which we did not find noisy. Apartment had a lift, we stayed in apt 13 on the 5th floor with 2 bedrooms, 2 bathrooms and a balcony with a nice view overlooking the Calton Hill. Checking in was easy with a pin code for the entry gate, lift and apt, felt very safe with CCTV around the common areas. Whole house was fully equipped with heaters, even for the bathroom floors. The 1 thing which was slightly weird was the living room which has a door, door stoppers should be available as the doors do not hold open, but it wasn't really bothering us. Will highly recommend this place if u are visiting edinburgh!