This place is great, clean, roomy, secure, and it has a nice balcony overlooking the Neues Promenade.
It is close to many restaurants, a Grocery Market, Museum Island, and the Hackescher Markt train stop which brings you to and from the Berlin Airport on the S9 line. Further it has a good kitchen, elevator, and a reliable WiFi.
I would recommend it to anyone without hesitation.