Overall a great place to stay, and worth the price.
My partner and I stayed at Alistair's for three and a half months to study at the University of Edinburgh. The apartment itself is as advertised although the pictures might make it seem more roomy. The few critiques we have are that the stove could only heat at the max setting, so food options were limited; we did see a mouse during our stay (it is pretty normal in Edinburgh but it is still nice to be warned); the heating was old and did not work that well. Alistair did not live in the apartment while we were there, instead a friend of his did. She was nice and helpful if you asked, but not that sociable.
Thanks to Alistair, our study abroad was affordable and easy. We had a great time.