The location can't be beaten, really: You are a stone's throw away from Haymarket Station and Fountain Park and are within walking distance to Princes Street and all its attractions. The Wifi was great and I never had any issues with it.
This isn't a spot I would recommend for long-term stays but, if you are looking for a place for a weekend, this will do. The bed is extremely hard, regardless of your personal preference, and I found that the place could be better.