Me and my friend stayed in a private room for two. Generally the hostel was OK; staff were not rude, the facilities were in working order, and the bar is very nice. However, our room was extremely small. We barely had room to stand beside the bed. This made the stay more cumbersome than enjoyable, and it's a shame.
Terrific hostel. Rooms are spacey and clean, the bar is well equipped and has a great atmosphere. The location is great - the place is right in the city center next to the Royal Mile so it's great for exploring the city. Though if you are looking for shopping or traveling outside the city using public transport you may want to pick a place closer to Princess Street..
Stayed with a friend in a private 2 bed bedroom, the room was located in the sixth floor with no elevator! Do not go to this place if you have a lot of baggage. Also the toilet on our floor was extremely small and claustrophobic, and the showers were ok but on a different floor. The bar and atmosphere are cool, but the location is far from being close to the area of interest. Breakfast was included and was generally on the better side, but in Paris you may want to get a more "local" one.