Fantastic location and simple, clean place that is what is advertised including the view of the castle. We had a glitch with the heater but David helped us get it to at least a mostly working state. Good directions how to find it--that car park is handy but we found it useful to drop off luggage with one person at the grassmarket stairs then have another person go park the car as it's a fairly long walk and in the dark was a little spooky (fitting for Edinburgh though, I suppose)