We stayed at quite a few amazing hotels during our two weeks in the UK...this was not one of them. Twice as expensive and half the size of any of the other 5 hotels we stayed at (Islay, Glasgow, Edinburgh, London and Belfast).
Comically small. So small only one person could be out of bed navigating the floor at a time and a ceiling dormer right next to the bed that I had to duck under when I got out of bed (see photo).
The shower wouldn't drain and we both had to stop mid shower before the water flowed over the curb. A mattress that felt that it was made out of concrete. This would be a perfect room for a hobbit, but not for a man and certainly not for a couple. Broom closet maybe?
Did I mention the all-night revelry taking place right outside our window?
In all seriousness, unless you have some reason for staying right on the Royal Mile, head into New Town (walking distance) and you'll find a quieter, larger room for less money. We'll definitely be back to Edinburgh, but won't be staying here.