TLDR: By far the best Airbnb apartment we have ever stayed. Hosts are also the most helpful and kind people we ever encountered.
My fiance and I stayed at Dunc and Dee's place for 45 days. We were there to work so we stayed and used the flat much more than the average tourist would.
Let's start with Dunc and Dee. Even before we booked the flat Dunc and Dee showed unparallel attention and kindness. Because of the pandemic we did not met personally, but their presence was noted as soon as we step foot on the flat. Everything was perfect. We asked them to do groceries for us because we would have to self isolate for 14 days and they did it gladly. We asked them to go change some IPS settings for my fiance to work from home and they did it within minutes. They always replied super fast and were always extremely helpful.
Now about the apartment:
The apartment was spotless clean. With home made biscuits and a procecco waiting in the fridge. The beds are super comfortable (more comfortable than what we have at home). Each bed has more pillows you will ever need! Bedding was super soft and comfortable. Duvet was also very warm. Bathroom was spotless clean. Kitchen was properly equipped. Heating is controlled with nest so super easy to manage the temperature inside (we stayed in November so it was already cold).
Internet is fast. Its fiber, average of 96mb download and 60ish upload. Jitter was always near 1ms, so very very stable.
Couches are comfortable, tv is good and it has netflix. We watched a couple of films and it streams smoothly.
Location wise the apartment was perfect for us. 1st floor, 5 min from the hospital, 30s away from farmers market and princes street. Grassmarket is 3 min away, there is a supermarket on the corner and an amazing restaurant next door.
Have I said there is a view of the castle from the living room?!
I don't know what else to say other then we wish we could buy that apartment to live in Edinburgh. It is perfect!