I stayed at Mercy's place for only two nights, and since my schedule was pretty busy we hardly saw each other. However, in the short talk that we had, I quickly noticed how nice she is.
Aside from that her place was very tidy, her cat was really sweet (I only got to see him at night when I arrived home and he would look at me with curiosity) and the location is near to one of my favorite places in Edinburgh: Craigmillar Castle. Therefore I really recommend her place, and her as a host, and hope to one day get to see her again :)