Communication was great with quick responses. The location couldn't be better for seeing the castle and all the Royal mile has to offer. The flat is on the "quiet" side of the building, even though by 6 everything is closed and pretty quiet that part of the street. I would highly recommend this place and owners if you need a place very centrally located to see old Edinburgh.
(Just be aware if there is any kind of festival or event that that part of the road could be closed to cabs/uber- but they can drop/pick up on the corner the next street down)