We did Norway and Baltic B2B in June on RCL. We loved it! However, we have booked a cruise to Norway (I told you we loved it!) for June 2021 on Carnival Legend!
We have sailed HAL, Carnival, RCL, and NCL. I wouldn’t go back on NCL. Our itinerary and cabin were wonderful, but everything else was meh. I would cruise any of the others at any time!