Staying at Kellie’s flat was very nice. The flat is clean and cute, well stocked, and in a great location. Old town is lovely, and the flat is a 5 minute walk across the north bridge to new town as well.
I will say there are bars outside the building and it gets VERY VERY loud in the living room so if someone is sleeping there keep that in mind. The bedroom has double paned windows so the sound was muffled. We slept with a white noise app and it was fine, plus there are provided earplugs.
Word of advice: when you leave, bring your bags down to the ground floor first, then go back up to leave the keys. The key fob attached operates the elevator (including to go down) so we ended up dragging our bags down the steps. Whoopsie!
We had a nice stay and it was a great base of operations for our visit to Edinburgh!