Perfect location, easy to access, very close to Alexanderplatz (although I recommend using the U bahn station Rosa Luxemburg which is even closer and much less crowded)
Nice little terrace with view over a beautiful little courtyard with a blossoming tree (if you happen to go in March/ April).
Everything worked perfectly, the place was clean (for my taste, the smell of cleaning agents was too prominent, for it to be thoroughly pleasant; I would have preferred a more neutral or no smell, but that’s just me :-)
The place earns a warm recommendation.