My family and I (in total 6 people) stayed in Caroline's place for 2 nights.
Honestly, this is the best Airbnb that I have ever lived.
Upsides:
1. Cozy
2. Roomy
3. Great location
4. Amazing decoration
5. Well-equipped kitchen (Caroline furnished the whole kitchen in the same tone)
6. Two bathrooms
7. Comfortable sofa
8. Good value
Downsides:
1. It is usually fully booked :-(.
To me, it is an unforgettable experience in Edinburgh.