We visited Edinburgh as a family of four. Louis's house is in easy walking distance from Dean's village, Prince's Street and the castle. Everything was clean and lovingly set up. The two bathroom setup was great for four guests and, since her sons were not there, we hat both bathrooms to ourselves.
The rooms are in the lower part of a town house, which mess you dont get to have a view. But you have you own entrance with 2 keys, which I prefer to a view. The ceilings are high, so there is always a feeling of "volume", you never feel boxed in.
Overall a great stay, we can fully recommend Louisa!!