We had a great stay at this hostel! It's directly at the Westbahnhof, easily accessible from the airport and well conected to the rest of the city. There was no problem with checking in at 1 a.m., everything was clean, there were lockers you could use in the rooms (bring your own lock) and it was nice and warm. You can get a good breakfast for 6 euros, or use the common kitchen. There are spacious social areas on both floors. You can also get drinks and food and throughout the week they organise small events. On Saturday evening there was a performance from a singer-songwriter which we enjoyed. The view from the rooftop is awesome so I hope I will come back in warmer months!