The Castle Snug was really great for me and my partner! I'll get some of the negatives out of the way, I did find one piece of dirty cutlery and the bar nearby was a bit loud, but they were quiet after 10pm so nothing too bad. These are nit-picks though, as staying at a property that makes you feel like you're part of the Edinburgh Castle was one of the highlights of the trip! The furniture is beautiful, we slept comfortably, the amenities were lovely/useful, and the location was perfect! We were able to get to every tourist-attraction without walking too far.
Thank you Brian and Christine!