Exactly what you would expect from student accommodation being rented out in Summer. We stayed for Fringe and it was in a great location, never more than 20 mins from any major Fringe venue. Lots of nice brunch/restaurant spots nearby.
Front desk is run by local students so they can give good advice, plus they're very friendly.
There is free tea/coffee basically all the time in the foyer, as well as a water refill station.
The only thing to note is the free shampoo/body wash they give you is very small, so maybe bring your own.