Everything was great, BUT:
Central Station area is very dangerous! We left our car for 5 minutes and a THIEF ON A SCOOTER has ROBBED US!!! Damage is around 14000€ + all of my documents like passport etc. + tones of private stuff on memory cards and the 1TB hard disk.
Sure, I recommend the apartment, the communication was smooth, but good luck with your cameras and wallets etc. in this area.