Lovely hotel, modern and very comfortable big rooms. The staff are very friendly and go out of their way to be helpful. Pool is small but sufficient to stretch weary muscles after a day walking berlin. The breakfast was excellent and always well stocked.
Two negative things about this hotel, the beds are a little hard for my liking and it is a little away from many of the main attractions. That said it is only a 10 minute walk to central train station and then easy access to all areas. Make sure you get the Berlin welcome card it saves having to buy Train/ underground/ bus tickets.