I was a bit concerned having seen the previous review about it being cold. I needn't have worried. It's an old building with period features so no, you can't come in and crank the heating up to 25 degrees, but there was frost on the ground outside and it was plenty cozy.
Fiona made us feel very welcome and waited out on the street in the cold to meet us on arrival. Plenty of nice homely touches. Was just what we needed for a central base to explore Edinburgh.