Very good

Disliked: A bit cold

Exceptional

Superb

Liked: The bed was really comfy and washroom was clean.
Disliked: The beer was 4 times more expensive than in super market.

Good location hostel, for good...

Liked: Amazing location, only a 15 minute walk to potsdamer platz and a stones throw distance to the anhalter bahnhof. Very clean hostel with a modern common room. Staff were helpful. They have a fridge and microwave behind the reception for food. Luggage storage is available but you need to bring your own padlock unless you would rather pay for one at reception. Showers were clean and warm.
Disliked: Toilet cubicles were quite small, so those of us who were in a mixed room had a small changing space. The 6 bed dorms meant that everyone was getting up a different times which led to restless nights sleep.

Superb

Liked: We booked a private room with a shower and bathroom. It was clean and had the basic necessities. Location is good, cafes and grocery shops nearby.
Disliked: The rooms are located in a labyrinth of hallways that can be a bit confusing. Small matter.

Passable

Very good

Very good

Good