Great place to stay in the heart of Edinburgh. We did use Uber most of the time to get around, but this was because it was January so we could've easily walked to most places if weather were warmer.
Claire's place was clean and had a nice modern kitchen and bathroom. The washer is only a washer, so just be prepared to hang all of your clothes on the ceiling rack in the living room. The only real negative we encountered was that there was no toilet paper on site, so we had to walk a couple of blocks to the Tesco Express to purchase. Also later realized there were no paper towels so we just used the toilet paper for the kitchen as well.