The hostel is in a great location, very close to the West Bahnhof train station and just a few stops on the fast subway into the heart of Vienna. There's cheap eats and supermarkets nearby.
My two nights there were comfortable but I thought it lacked personality and soul. My first impression of the hostel was that it was money-grabbing money-grabbing their invitation to pay extra to check-in early or check-out late. I was able to leave my bags in the unattended/unlocked bar area while I went out to get lunch before 3pm check-in but then almost had to beg to check in 30 mins early, even though my bed was already ready.
The 4 (single not bunk) bed female dorm with en suite was relatively small although there were cupboards/underbed drawers to put your things. The hostel kitchen didn't have a fridge (there was one in each room instead) and most of the cupboards were locked.
There was a little lockable safe with a power board for 4 sockets for each person, but these boards weren't plugged in anywhere. There was just 1 wall plug socket with an extension cable and a power board but that would leave 2 sockets between 4 people as the fridge and fan were plugged in. Reception was able to provide another extension cable and power board, which meant that all 4 power boards in the lockable safes could be plugged in but that then meant that there were wires trailing across the room as a trip hazard.