Never book this hotel, in minimum during summer! It has a 40 years old, centralized AC that can NOT be controlled by the guest. That AC is extremely noisy, running in late evening (11 pm till midnight) as well as in the very early morning (6.30 am). Impossible to sleep!
The room is cooled down to iceland conditions, too.
May be it is less strange in other rooms, I had room 228. They said, the nearest one to the "machine".