Mir hostel was the highlight of my S.P. experience. Overall, it's clean, spacious, safe, lay-back and friendly. Of course, the location is worth a million rubles. People of all ages stay here so I did not feel out of place. By chance I spent a night at co-ed dorm because an overbooking situation but the staff offered that night for free, and my second night at a private room. I had no problem sleeping well at the dorm even with people coming back through the night. I had wonderful conversations with lively Irina, who runs the place like her own home. Good luck to you in Australia, Irina!