We stayed over the New Year break and the apartment has the best position without a doubt. You are on the corner of a building in the Grassmarket, two of the lounge windows look up to the castle and the bedroom window looks up the Grassmarket. Even though I made a daft mistake with the booking (booked a year later than I thought) Maureen was great so I kept the booking going. So the pluses - Location. Cleanliness. Value for money. Good wifi. Well equipped kitchen (including tea, coffee, condiments). Bathroom toiletries. Easy to follow getting in instructions (get a key code for the door which I wish all AirBnB places had). Only a couple of minuses that we already knew about to be fair - 7 flights of stairs and no lift. Parking - but that's what you expect in the middle of Edinburgh. You can park outside on the street free from 18:30 - 08:30 and then pay £4 per hour for a max of four hours. Then there's an NCP car park five minutes walk away for £5 per hour. Would recommend this apartment with no reservations.