Louise's place is a perfect stay for a visit to the Fringe Festival. One of the main hubs of the Fringe is George Square which is literally a minute walk away, and from there it's only a short hop and a skip to the Royal Mile. There's also a bunch of cute restaurants and cafe's nearby as well.
The apartment is very cute and charming and uses the small space very effectively. The bath/shower was a highlight. Large deep bath with a rain head shower. There's also a TV built into the shower wall, but sadly it didn't seem to be working when we were there.
Things to be aware of though, is that this flat is on the top floor the building in which is up 3 flights of stairs. Another thing that would happen from time to time is that the lights for the hallway/stairs would sometimes not come on at all, which to my knowledge were suppose to automatically. So some nights it would be pitch black going down the stairs.
Our first day there was also during a small heatwave and with the apartment being on the top floor, the place heated up quite fast. With no air conditioning or fan, the apartment was at about 83°F. Because of this, we had the windows open pretty much at all times. Idk if it's because the apartment is in a relatively small alley or the fact that the building and roads are all old stone, but it does get incredibly noisy. Also because it was the Fringe, people were out to all hours of the night/morning so trying to sleep at night we would hear people outside our window from midnight to all the way to 5/6AM pretty much just screaming.
So yeah, with such a close proximity to the main fringe hub has some drawbacks but overall I'd highly recommend Louise's charming apartment.