One star for the location which is top for visitin...
One star for the location which is top for visiting Hamburg, one star for the price and the general hygiene which was correct.
For the rest, I find that this place does not have at all the warm side that I like to find in hostels. During our stay, profitability seemed to be the top priority of this hostel.
We had booked a "couple" room with bathroom. It was actually two single beds pushed together. The bathroom looked and smelled like an airplane toilet. I finally took my shower in the shared bathroom upstairs, it was much more comfortable! During the night, we were woken up numerous times by the doors of the floors slamming. They snap so hard that you vibrate with them when they close. The reception staff don't seem to know Hamburg more than that. When you ask them for advice on where to visit, they answer you but it's very basic. The breakfast is more than adequate for the price, except when at 9 am they are already in shortage of certain foods. One of the two elevators was out of order throughout our stay. When you are in the 6th, it can take a while in the morning to go down, whether it is with the elevator or finally on foot. One evening, the common area was privatized for a private party. I've never seen this in a hostel. It does not seem to me that a kitchen is available to prepare your meals.
Anyway, if you want to go to Hamburg as a couple and / or you are looking for something cozy, put around twenty euros more and you will have something much more comfortable and welcoming. If you are going with a group, and / or are foolishly looking for something to sleep and wash, this hostel will do just fine.