Great location on the Royal Mile, easy access to the castle, palace, gardens, churches, and galleries, not to mentions the restaurants, pubs, and nightclubs. We arrived close to midnight so having a key box made it easy to get in, Kaddeer sent the box code a few days before we were due to arrive. He was quick to respond when we texted him. The apt was spacious, we were five adults and there was plenty of space. The kitchen is small but we weren't cooking on vacation. The living room/dining area is large and has two large windows over looking High Street making it a good spot for people watching. This part of the street was closed off to car traffic for most of the day, every day making it a good location for walking around, shopping, eating, sightseeing.
The apartment does need some TLC as been noted on other reviews (I have mentioned some items to the host, biggest issue is the plumbing) with some updates and fixes this would be a great accommodation.