We had high hopes for this cruise. From Tokyo to Seattle! Alaska is gorgeous! Unfortunately when all was said and done it was really "just OK".
I won't review NCL specifically here other than to say that since we first sailed NCL 5 years ago we have noticed a steady decline in quality and amenities. Their "chocolate night" is gone. The quality of the food is noticeably lower. Etc. From other cruisers I've spoken with this is not unique to NCL (HAL has been mentioned a few times by people I know). But we sailed NCL, and so that's what I will criticize.
The crew was fine. That has been the one constant in all our NCL cruises. They are friendly, helpful, and just generally really nice. No complaints there at all.