The space is just as described. Yes, you have several flights of stairs to climb to get to the suite, but once you’re there, it is beautiful. The rooms are all a good size ( the princess room should be in photo shoots!) and the dining/living space can easily accommodate a large group. We loved the location - so close to Arthur’s Seat and the Royal Mile, without being too busy.
I would definitely stay if I come to Edinburgh with a large group again!