The location is perfect for the Fringe. Obtaining access on arrival was a little tricky as the lockbox containing the key wasn't clearly marked. On arrival, we discovered that one of the two bathrooms was "out of order" (a laminated notice on the door told us not to use the bath/shower due to a leak). A toilet seat was also broken.
The host should have notified us in advance (looking at other reviews, the bathroom had been broken a while, and someone had found time to make a laminated notice). Had we known in advance we would have cancelled our booking and stayed elsewhere. Four adults (two couples) sharing one en-suite fell far short of our expectations having paid for the use of two bathrooms. We obtained a partial refund from AirBNB (thank you), but this experience still marred our holiday.
Beware that the en-suite shower room is separated from the hallway by a wall made of glass blocks. Anyone in the hall will see a silhouette of anyone in the shower. This may be offputting to some people.
Overall the apartment felt a little unloved. Several light bulbs were missing or blown. A smoke detector in the kitchen was missing. The bin in the bathroom was broken. The standard of cleaning wasn't great (some bits on the floor and a dirty tissue in an obvious place in a bedroom).
If all of these issues were fixed and ongoing maintenance standards are raised, this apartment would be first class.