Liam was a very welcoming host, an interesting personality and easy to talk to. He was away when I arrived, but the instructions he had provided were clear and there were no issues getting the key.
As for the location, you probably won't find anything better. All the major attractions, the train station, the pubs and the shops are within a 15-minute walking distance so you can really save some money by not having to take the bus every time you wish to go somewhere.
Although located right next to a busy street, the room itself was quiet and the bed very comfy. It should be mentioned, however, that it looks very different to the pictures currently and you basically stay in Liam's little daughter's bedroom, which came as a bit of a surprise to me, but whatever works for them.
Overall, I had a very enjoyable stay and would happily choose Liam's place again if I were to visit Edinburgh in the future.