I've been "hurtigrutening" twice this year, once in March and again in August, both times on M/S Finnmarken, both times with a friend. On both occasions we had an absolutely great time. Our outside cabin on deck 3 was comfortable, with plenty of room for 2 adults and storage space - let's face it, all you do is sleep there so why want more space? It also had a decent size window. On the first trip our cabin was on the Port side and the second time on the Starboard side, and I can't say we noticed any difference in the noise levels when in port during the night. These ships are, after all, very well insulated.
We particularly like deck 3 as there is no walkway outside as on deck 5 so we felt it was more private, even though the cabins on deck 5 have tinted windows.
The food was excellent and more than plentiful, so much so that we asked for half portions at dinner and found these more than adequate. The kitchen was also very good in catering to my allergy, making sure I had an acceptable alternative whenever necessary. We treated ourselves to the wine deal on the second trip. This gave us a bottle of wine to drink at dinner each day, and every day the wine was excellent and tailored to the meal. There was no obligation to finish it at one meal, and the waiting staff would always leave the cork for us to take any remaining wine to drink later in the evening, or even to save for lunch the next day.
Cabin 328 deck 3 M/S Finnmarken. Outside cabin with decent size window. Beds very comfortable. Slept extremely well during both voyages. More than enough 2 adults and storage space. One one trip we had a Port side cabin, on the other a Starboard side, and there was no noticeable different is noise when calling in at ports during the night. Warm, with easily adjustable thermostat. Compact bathroom with plenty of hot water for showers.