I know I will do no justice to this place when I make a review, but let's try.
First things first: I had never ever been to Berlin. I got off the subway, took the S9 subway line and got off at Zoologischer Garten station in less than an hour, and navigation showed me a pretty straight route to the hotel. I found it like I knew the whole city.
I stayed at the Balcony Suite. The suite was gorgeous. With a king sized bed, a very nice dining setting that provided every utensil you'd need to cook or heat your food. And then, as someone who LOVES to drink, I was informed that the first round of the mini bar was totally complimentary... Then also found a nespresso machine with a couple of coffee capsules at hand, and the best potato chips I've ever had in my life...
The shower was another thing. All the beauty products placed in the bathroom -the shampoo, the shower gel, body lotion...- all were from high class brands. I loved one in particular and wished it was also sold in my country! I easily managed the shower arrangements with the heads and also loved the warmth level of the water.
It was around 9-10 degrees when I stayed, but the heaters worked pretty well and fine. I never felt cold.
I was never disturbed in the peace of my room. And the area was super safe, the hotel was pretty quite.
I LOVE this experience and I'll definitely stay here again if I ever come to Berlin. Thanks for everything!