I stayed in one of the appartment suites with my father for a long weekend. It was my first ever visit to Berlin, and staying at SANA hotel has really enabled me to enjoy it to the fullest! The appartment was clean, luxurious (we each had our own bed room and bath room!) and well kept. Every day when we came back from our day of touring the city, the appartment was cleaned up again and the beds made. I like to run in the morning and when it was raining I could make use of the gym very easily, where there was also fresh infused water available and very modern equipment. Would really recommend staying at SANA hotel if you have the chance! The location is also really great, not in the heat of the center where it's too crowded, but close enough that's the traveling time is not becoming an inconvenience.