This hotel is a pleasant surprise in every way. First of all, the reviews about no air-conditioning are not or no longer true, air-conditioning is just fine and cools down your room like a refrigerator, helps with sleeping.
The room is also sound tight, despite of a tram in front of the room, you hear almost nothing, no traffic, just silence, also towards the hall. The decoration is a compliment apart, really nice and different from all other 1000's of standard hotel rooms. Many colours, a fireplace decorated tv with a actual movie of fire.
Breakfast is indeed somewhat crowded, and in worst case you have to wait 5 minutes for a space. Tables are arranged in groups, so prepare to eat with 5 couples on a 10 person table. When used to this, its actually a social happening. There are all kinds of bread and bagels, good coffee/cappuccino, juice and even delicious smoothies! Lots of fresh fruit and yoghurt, muesli etc.
And even then when departing to experience Berlin, a free coffee-to-go is also offered (Y).
Last but not least, the entrance hall is also worth mentioning; computers to surf, a space to share tips and ideas to visit, charging point, kids corner, a bar in the evening and always free coffee.