I stayed at Ellie and Scott's place at festival time and it was a lovely little oasis away from the madness of Old Town. It is a bit of a walk in to old town/new town. But there are plenty of busses that run from right outside the flat and once I got the hang of them getting around was easy.
The stairwell is definitely due for an upgrade, but once you get inside the apartment it's worth it. It's a lovely space with everything you need and the comfiest bed!