Spend five nights in this hotel and in overall very satisfied with it. Clean and comfortable room, very nice and helpful stuff to help you with any questions.
Location fit very well for our purpose, silent location but the public transportation is just around the corner. Close to U2 metro station, one local bus stop in front of the hotel, a few hundred meters to Unter den Linden bus stops where you can take for example the TXL bus from/to the Tegel airport. Alexander Platz takes some 15-20 min to walk or easily by metro. So good availability of public transport connections.
Breakfast is quite expensive, 15 €, so we did not take it, however cafes for cheeper options are near by. Up to you what you prefer.
Construction work just on the other side of the street still but thanks to good voice isolation did not disturb us at all although having the room in the street side.
Wireless network is basically available but very unstable. Sometimes with very good speed but time to time not available at all or very slow. Would not recommend for business purpose if you need a constant high speed connection but on holiday did not find as so critical thing.
I can frankly recommend if you want to have a nice hotel with good accessibility to public transportation connections. Good value for money.