We had a pleasant stay at Tom and Steph's place. Along with their daughter and a VERY friendly and affectionate cat called Poppy (who had endeared herself to us), they have made our stay in Edinburgh a comfortable and memorable one!
Tom was responsive before our trip and for the duration of our stay. Their house is big enough to not feel that you're getting into each other's way: the room is located in the basement adjacent to the kitchen and you get a private bathroom across the hall. It was clean and has a good shower.
The room itself is definitely big enough for two people, however if you plan on booking it for three people like I did, be aware that the room may feel a bit cramped inside as the air mattress which is big and of good quality takes over the remaining walkable space when laid down. That's a small compromise though!
There is a bus stop conveniently located just outside their house, it goes straight to the city centre in 10-15mins. It's walkable to and from the centre if you have the time.
Overall, this was a good booking and we would stay here again if it's still available next time we're back in Edinburgh. :)