The flat itself is functional for my party of 4. The flat was reasonably clean, just a bit tired looking and could do with a bit of a lift. This was best illustrated by the handle of the bedroom door breaking off and I was unable to leave my bedroom in the middle of the night until I managed to pry the door open. The kitchen and bathroom were good.
The one main issue was the noise. Whilst I understand it is a city centre flat and right in the heart of Edinburgh, There is a club next door and the bass noise on the Friday and Saturday evening was loud in the flat until 4 in the morning. I only managed to sleep by playing static noise on my speaker. This may not be a problem if you are off out with friends until the early hours, however, if you're looking for an earlier night then you should probably look elsewhere. I would suggest that at weekends this is not a place for a family to stay.
On a positive note the communication was excellent, including the return of an item that was left by a friend at the property. I was contacted promptly and arranged a pickup in the city the same day.