We are a vegan/gluten free family and took our 2 teenage daughters to Berlin the week before Christmas.
We chose this duplex because of the proximity to the Mercedes Arena (Kpop concert) and plethora of Vegan restaurants.
It was the perfect location for everything we needed. Its a quick trip to and from airport by train, and to downtown for all the holiday markets. There are 3 floors with separate beds and baths. Plenty of room for teenagers to brood or sleep away the day. Our children really loved all the vintage shops. We even had the great luck of a farmers / holiday market on Christmas eve in the square across the street.
This is a cute duplex in the garden of a larger building so its both a quiet home feel and right in the city. You go through the gate of an Apt Bldg, there are 3 restaurants on the block.
My two warnings: there are two very steep interior staircases (not recommend small children/unstable walkers); watch your head coming up from basement