We are a couple in our early 30s - I had been on one cruise years ago, and we chose NCL specifically for the "Freestyle Cruising" concept (which we loved). Overall, you couldn't get better value for your dollar if you tried! I really enjoyed reading these reviews before we left, so thought I'd put down my two cents on what we thought ... like other reviewers have noted, we experienced VERY ROUGH seas for the first couple of days ... Gravol became my best friend (I would highly recommend bringing some, even if you don't typically get sick). This is nothing that NCL can control, and the staff was very helpful during the rough sea days.
FOOD: The food in the full service restaurants was excellent - our meals at Four Seasons and Seven Seas were very good - although quick - some would see this as a positive, but we kind of like to linger over our dinner ... once we mentioned we weren't in a rush, it was perfect. We also ate in the: East Meets West Steakhouse, Il Adagio, Pacific Heights and Teppanyaki restaurants - all were worth the money - our favorite was Il Adagio, but thought the experience and food was also great in the Teppanyaki spot too. Our only disappointment was the buffet - like many others have commented, the food wasn't that tasty, and the layout is a bit confusing. So ... we just avoided eating there, which was very easy to do. The breakfast in Seven Seas was excellent - would highly recommend it - much calmer and better food than in the buffet...
We didn't find the drinks to be expensive (although stuck to wine and beer most of the time) ... one way to cut down the cost of the frozen/fancy drinks is to skip the souvenir cup ... you can save $2-3 per drink that way.