We (2 people) always wanted to do this. We have read about this trip and seen reports on TV. The entire trip was perfectly organised and everything went out as planned. We did the 12 day Bergen - Kirkenes - Bergen cruise. The Cabin ((Arktis Superior) was OK and functionable. We have spend there almost only time for sleeping.
The food was fantastic and we both have gained weight because we were so much tempted to eat too much (But it was worth it)
We have gone on several excursions;
The cabin was functional. It was OK for uy. We have not spend too much time in the cabin