Indre and Arnold's place is perfect! You won't find an apartment with a better location in Edinburgh. It has everything you could possibly need. There was room for all our things. We were pretty warm in the apartment even with the windows open, so we bought a standing fan to cool the room - we left it for future travelers :).
For anyone who wants to know, there are quite a few steps to climb before you get to the apartment - 3, then 8, then another 8.
I hope you appreciate this place as much as we did!