If you are looking for a place close to the centre, across the road from the station and there are 2-4 of you, I highly recommend this apartment.
It was quite cold in Berlin when we visited (around 6 degrees average) but the apartment stays quite warm so it was always good to know we were coming back to a warm apartment after a day out.
The sitting room and bedroom have a stylish look with high ceilings which gives the impression of a lot of space. This means the bathroom and kitchen are very small but this was not much of an issue for us. You will have to buy some breakfast stuff but the supermarket is a short walk away so this is not a problem either. Overall this was a great stay in a lovely and convenient neighbourhood.