I highly recommend booking Laura's place. The accommodations are excellent. We had our own bedroom + bathroom, breakfast was included (cereal, toast, jam, eggs and milk), and she has tons of info about Edinburgh and things to do while in Scotland. Her house is a 30 minute walk from the train station & city center, but there is a bus stop right down the street from her house if you prefer not to walk. Just be sure to carry exact change for the bus fare (£ 1.70 per ride or £4 for a day pass).