This hotel is located in the center of Berlin, near Wittenbergplatz metro station and convenient to move around using public transportation (bus, metro, tram and S-hahn) whose fare is 2.8 euros as of 2017 within the zone A and B for two hours.
Even within walking distance, there are a lot of restaurants, cafes, shops, supermarkets and some sightseeing spots such as Kaiser-Wilhelm church, aquarium, zoo garden and so on.
(This might depend on the room level, but WiFi for additional devices need extra fee. So if you need to connect more than one devices, you should check it beforehand.)