The room was clean and we had a welcome package with scottish Whiskey and some treats as well as a fridge with complementary water. Daily refills, even for the Whiskey =).
Drew and Tom were very friendly and helpful and made us feel at home for the duration of our stay.
The flat is close to the city centre (taxi cost to Waverly Station about 5 pounds) and very close the Arthur's seat.

I would absolutely recommend to stay at Drew and Tom's place when you are in Edinburgh.