When we arrived, our first impression of the place was a shared hallway full of litter. Our second impression was a freezing cold apartment with the heating turned off. Literally not a warm welcome after walking all day through windy Edinburgh. We turned on the heating and (following the instructions of the host) set it to Auto mode, unfortunately leading to the flat not getting warm until the next day (because it automatically stopped during the night - after setting it to On mode, it worked just fine).
In the nights, especially on the weekend, we had trouble sleeping due to very thin walls, loud neighbours, and sirens.
Don't get me wrong, it is not a horrible apartment - the bathroom was spotless and the apartment served its purpose being in walking distance of the city, especially the old town and its sights. However, based on what I read here beforehand I expected more.