Lily's flat is perfectly located bang in the centre of all the events of the Fringe, and everything is just a short walk away. The flat itself is spacious, clean and well-equipped. Lily was very friendly and efficient and quick to solve any problems that we encountered. Do be aware that the stairs to the flat are a bit steep and would be a bit problematic with heavy luggage or for older people. The check-in was flexible as you pick up the keys from a drop-box which was useful as we arrived earlier than check-in time (2pm).
The only negative was on the checkout morning. We were running around 15 mins late for the 10am checkout deadline, expecting that the apartment would not be cleaned at 10am sharp. However, we were met at the deadline time by a lady (not Lily) screaming and angry and trying to physically usher us out when we still needed to grab our bags, which we found quite shocking. I do wish that she had reacted a bit differently, and there was a language barrier which did not help, as I was quite shaken and it did colour my visit a bit. Apart from that, our stay at Lily's flat was perfect.