It is close to Salzburg hbf. It takes just 2 minutes by walk. However you should note that you should follow the map served by Expedia. Do not search for the location in Google map, which leads you to the wrong direction.
The ceiling of this accomodation is so high that you would feel comfortable. However, it is a little bit dim. This is the only one you may feel uncomfortable.
Thank you for your service A&O.