I stayed at CODE two nights, and already wrote a review for the first night. I though I would just follow up with a few additional comments after staying at one of the other, much less expensive hostels in Edinburgh (The Castle). For what it is worth, I would stay at CODE again - it is more expensive than other hostels, but you get what you pay for. It is cleaner, has fewer guest, much newer, there are fewer people per room, and the pods are much more private than bunk-beds. There was some noise from the street in the middle of the night, so you might want to have earplugs. While CODE is not be located right on the royal mile, it is still an easy walk to most of the historical sites in Edinburgh. In short, a nice options for independent traveled who want something better than your typical hostel, but don't want to shell out the cash for a hotel room.