I reccomend "Family Sauna room" which gives some additional space for 2 adults and 2 kids.
As many guest reviewed already, the facility is really old and outdated. However I should be fare to mention that staffs maintain them very clean and functioning.
The location is perfect. Yo can reach from the main station on foot, or 1 stop by the tram or subway. Still the inside of the hotel is silent enough.
Another highlight is the breakfast. We are really happy for the selection and quality. Fully reccomending to add it at the booking time.